diff --git a/js/htk/assistant.js b/js/htk/assistant.js
index 60e556e4..2699ce5b 100644
--- a/js/htk/assistant.js
+++ b/js/htk/assistant.js
@@ -86,7 +86,7 @@ module.exports = new Class({
 		this.parent(props);
 	},
 
-	appendChild(step) {
+	appendChild: function(step) {
 		if (!(step instanceof Step))
 			throw new Error('Invalid child for assistant');
 
diff --git a/package-lock.json b/package-lock.json
index 5bbc6dbd..116e293e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,12 +5,12 @@
   "requires": true,
   "dependencies": {
     "accepts": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.4.tgz",
-      "integrity": "sha1-hiRnWMfdbSGmR0/whKR0DsBesh8=",
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "dev": true,
       "requires": {
-        "mime-types": "2.1.17",
+        "mime-types": "2.1.18",
         "negotiator": "0.6.1"
       }
     },
@@ -98,13 +98,24 @@
       "dev": true
     },
     "anymatch": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.0.tgz",
-      "integrity": "sha1-o+Uvo5FoyCX/V7AkgSbOWo/5VQc=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
+      "integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
       "dev": true,
       "requires": {
-        "arrify": "1.0.1",
-        "micromatch": "2.3.11"
+        "micromatch": "3.1.10",
+        "normalize-path": "2.1.1"
+      },
+      "dependencies": {
+        "normalize-path": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
+          "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
+          "dev": true,
+          "requires": {
+            "remove-trailing-separator": "1.1.0"
+          }
+        }
       }
     },
     "archiver": {
@@ -146,18 +157,21 @@
       }
     },
     "arr-diff": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
-      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
-      "dev": true,
-      "requires": {
-        "arr-flatten": "1.0.1"
-      }
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
+      "integrity": "sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=",
+      "dev": true
     },
     "arr-flatten": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.0.1.tgz",
-      "integrity": "sha1-5f/lTUXhnzLyFukeuZyM6JK7YEs=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
+      "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
+      "dev": true
+    },
+    "arr-union": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
       "dev": true
     },
     "array-find-index": {
@@ -179,7 +193,7 @@
       "dev": true,
       "requires": {
         "define-properties": "1.1.2",
-        "es-abstract": "1.9.0"
+        "es-abstract": "1.11.0"
       }
     },
     "array-union": {
@@ -198,9 +212,9 @@
       "dev": true
     },
     "array-unique": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
-      "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=",
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
+      "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
       "dev": true
     },
     "arrify": {
@@ -210,9 +224,9 @@
       "dev": true
     },
     "asn1.js": {
-      "version": "4.9.2",
-      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.9.2.tgz",
-      "integrity": "sha1-gRfvT37YfNj4kES1v/l6wkOhbJo=",
+      "version": "4.10.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
+      "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
       "dev": true,
       "requires": {
         "bn.js": "4.11.8",
@@ -242,6 +256,12 @@
         "mkdirp": "0.5.1"
       }
     },
+    "assign-symbols": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
+      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
+      "dev": true
+    },
     "async": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/async/-/async-2.5.0.tgz",
@@ -257,6 +277,12 @@
       "integrity": "sha1-GdOGodntxufByF04iu28xW0zYC0=",
       "dev": true
     },
+    "atob": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.1.tgz",
+      "integrity": "sha1-ri1acpR38onWDdf5amMUoi3Wwio=",
+      "dev": true
+    },
     "babel-code-frame": {
       "version": "6.22.0",
       "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.22.0.tgz",
@@ -274,10 +300,77 @@
       "integrity": "sha1-yz8+PHMtwPAe5wtAPzAuYddwmDg=",
       "dev": true
     },
+    "base": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/base/-/base-0.11.2.tgz",
+      "integrity": "sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==",
+      "dev": true,
+      "requires": {
+        "cache-base": "1.0.1",
+        "class-utils": "0.3.6",
+        "component-emitter": "1.2.1",
+        "define-property": "1.0.0",
+        "isobject": "3.0.1",
+        "mixin-deep": "1.3.1",
+        "pascalcase": "0.1.1"
+      },
+      "dependencies": {
+        "define-property": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
+          "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+          "dev": true,
+          "requires": {
+            "is-descriptor": "1.0.2"
+          }
+        },
+        "is-accessor-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
+          "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "6.0.2"
+          }
+        },
+        "is-data-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
+          "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "6.0.2"
+          }
+        },
+        "is-descriptor": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
+          "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "dev": true,
+          "requires": {
+            "is-accessor-descriptor": "1.0.0",
+            "is-data-descriptor": "1.0.0",
+            "kind-of": "6.0.2"
+          }
+        },
+        "isobject": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true
+        },
+        "kind-of": {
+          "version": "6.0.2",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "dev": true
+        }
+      }
+    },
     "base64-js": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.1.tgz",
-      "integrity": "sha1-qRlH2h9KUW6jjltOwOw3c2deCIY=",
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.0.tgz",
+      "integrity": "sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw==",
       "dev": true
     },
     "batch": {
@@ -322,13 +415,13 @@
         "bytes": "3.0.0",
         "content-type": "1.0.4",
         "debug": "2.6.9",
-        "depd": "1.1.1",
-        "http-errors": "1.6.2",
+        "depd": "1.1.2",
+        "http-errors": "1.6.3",
         "iconv-lite": "0.4.19",
         "on-finished": "2.3.0",
         "qs": "6.5.1",
         "raw-body": "2.3.2",
-        "type-is": "1.6.15"
+        "type-is": "1.6.16"
       },
       "dependencies": {
         "debug": {
@@ -358,7 +451,7 @@
         "deep-equal": "1.0.1",
         "dns-equal": "1.0.0",
         "dns-txt": "2.0.2",
-        "multicast-dns": "6.1.1",
+        "multicast-dns": "6.2.3",
         "multicast-dns-service-types": "1.1.0"
       }
     },
@@ -373,14 +466,32 @@
       }
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     "braces": {
-      "version": "1.8.5",
-      "resolved": "https://registry.npmjs.org/braces/-/braces-1.8.5.tgz",
-      "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-2.3.2.tgz",
+      "integrity": "sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==",
       "dev": true,
       "requires": {
-        "expand-range": "1.8.2",
-        "preserve": "0.2.0",
-        "repeat-element": "1.1.2"
+        "arr-flatten": "1.1.0",
+        "array-unique": "0.3.2",
+        "extend-shallow": "2.0.1",
+        "fill-range": "4.0.0",
+        "isobject": "3.0.1",
+        "repeat-element": "1.1.2",
+        "snapdragon": "0.8.2",
+        "snapdragon-node": "2.1.1",
+        "split-string": "3.1.0",
+        "to-regex": "3.0.2"
+      },
+      "dependencies": {
+        "extend-shallow": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
+          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "dev": true,
+          "requires": {
+            "is-extendable": "0.1.1"
+          }
+        }
       }
     },
     "brorand": {
@@ -390,34 +501,34 @@
       "dev": true
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-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.1.1.tgz",
-      "integrity": "sha1-OLerVe24Bv8tzaGn8WIHc6R3xJ8=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
+      "integrity": "sha512-+7CHXqGuspUn/Sl5aO7Ea0xWGAtETPXNSAjHo48JfLdPWcMng33Xe4znFvQweqc/uzk5zSOI3H52CYnjCfb5hA==",
       "dev": true,
       "requires": {
         "buffer-xor": "1.0.3",
         "cipher-base": "1.0.4",
-        "create-hash": "1.1.3",
+        "create-hash": "1.2.0",
         "evp_bytestokey": "1.0.3",
         "inherits": "2.0.3",
         "safe-buffer": "5.1.1"
       }
     },
     "browserify-cipher": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/browserify-cipher/-/browserify-cipher-1.0.0.tgz",
-      "integrity": "sha1-mYgkSHS/XtTijalWZtzWasj8Njo=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/browserify-cipher/-/browserify-cipher-1.0.1.tgz",
+      "integrity": "sha512-sPhkz0ARKbf4rRQt2hTpAHqn47X3llLkUGn+xEJzLjwY8LRs2p0v7ljvI5EyoRO/mexrNunNECisZs+gw2zz1w==",
       "dev": true,
       "requires": {
-        "browserify-aes": "1.1.1",
-        "browserify-des": "1.0.0",
+        "browserify-aes": "1.2.0",
+        "browserify-des": "1.0.1",
         "evp_bytestokey": "1.0.3"
       }
     },
     "browserify-des": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/browserify-des/-/browserify-des-1.0.0.tgz",
-      "integrity": "sha1-2qJ3cXRwki7S/hhZQRihdUOXId0=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/browserify-des/-/browserify-des-1.0.1.tgz",
+      "integrity": "sha512-zy0Cobe3hhgpiOM32Tj7KQ3Vl91m0njwsjzZQK1L+JDf11dzP9qIvjreVinsvXrgfjhStXwUWAEpB9D7Gwmayw==",
       "dev": true,
       "requires": {
         "cipher-base": "1.0.4",
@@ -432,7 +543,7 @@
       "dev": true,
       "requires": {
         "bn.js": "4.11.8",
-        "randombytes": "2.0.5"
+        "randombytes": "2.0.6"
       }
     },
     "browserify-sign": {
@@ -443,11 +554,11 @@
       "requires": {
         "bn.js": "4.11.8",
         "browserify-rsa": "4.0.1",
-        "create-hash": "1.1.3",
-        "create-hmac": "1.1.6",
+        "create-hash": "1.2.0",
+        "create-hmac": "1.1.7",
         "elliptic": "6.4.0",
         "inherits": "2.0.3",
-        "parse-asn1": "5.1.0"
+        "parse-asn1": "5.1.1"
       }
     },
     "browserify-zlib": {
@@ -465,8 +576,8 @@
       "integrity": "sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=",
       "dev": true,
       "requires": {
-        "base64-js": "1.2.1",
-        "ieee754": "1.1.8",
+        "base64-js": "1.3.0",
+        "ieee754": "1.1.11",
         "isarray": "1.0.0"
       }
     },
@@ -561,6 +672,31 @@
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
       "dev": true
     },
+    "cache-base": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
+      "integrity": "sha512-AKcdTnFSWATd5/GCPRxr2ChwIJ85CeyrEyjRHlKxQ56d4XJMGym0uAiKn0xbLOGOl3+yRpOTi484dVCEc5AUzQ==",
+      "dev": true,
+      "requires": {
+        "collection-visit": "1.0.0",
+        "component-emitter": "1.2.1",
+        "get-value": "2.0.6",
+        "has-value": "1.0.0",
+        "isobject": "3.0.1",
+        "set-value": "2.0.0",
+        "to-object-path": "0.3.0",
+        "union-value": "1.0.0",
+        "unset-value": "1.0.0"
+      },
+      "dependencies": {
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+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true
+        }
+      }
+    },
     "caller-path": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
@@ -624,20 +760,34 @@
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-      "version": "1.6.1",
-      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-1.6.1.tgz",
-      "integrity": "sha1-L0RHq16W5Q+z14n9kNTHLg5McMI=",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-2.0.3.tgz",
+      "integrity": "sha512-zW8iXYZtXMx4kux/nuZVXjkLP+CyIK5Al5FHnj1OgTKGZfp4Oy6/ymtMSKFv3GD8DviEmUPmJg9eFdJ/JzudMg==",
       "dev": true,
       "requires": {
-        "anymatch": "1.3.0",
+        "anymatch": "2.0.0",
         "async-each": "1.0.1",
+        "braces": "2.3.2",
         "fsevents": "1.2.4",
-        "glob-parent": "2.0.0",
+        "glob-parent": "3.1.0",
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-        "is-glob": "2.0.1",
+        "is-glob": "4.0.0",
+        "normalize-path": "2.1.1",
         "path-is-absolute": "1.0.1",
-        "readdirp": "2.1.0"
+        "readdirp": "2.1.0",
+        "upath": "1.1.0"
+      },
+      "dependencies": {
+        "normalize-path": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
+          "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
+          "dev": true,
+          "requires": {
+            "remove-trailing-separator": "1.1.0"
+          }
+        }
       }
     },
     "cipher-base": {
@@ -656,6 +806,35 @@
       "integrity": "sha1-vos2rvzN6LPKeqLWr8B6NyQsDS0=",
       "dev": true
     },
+    "class-utils": {
+      "version": "0.3.6",
+      "resolved": "https://registry.npmjs.org/class-utils/-/class-utils-0.3.6.tgz",
+      "integrity": "sha512-qOhPa/Fj7s6TY8H8esGu5QNpMMQxz79h+urzrNYN6mn+9BnxlDGf5QZ+XeCDsxSjPqsSR56XOZOJmpeurnLMeg==",
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+      "requires": {
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+        "define-property": "0.2.5",
+        "isobject": "3.0.1",
+        "static-extend": "0.1.2"
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+      "dependencies": {
+        "define-property": {
+          "version": "0.2.5",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
+          "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "dev": true,
+          "requires": {
+            "is-descriptor": "0.1.6"
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+        "isobject": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/isobject/-/isobject-3.0.1.tgz",
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "dev": true
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+      }
+    },
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@@ -6507,33 +8228,33 @@
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-        "watchpack": "1.4.0",
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-          "integrity": "sha1-dEbTlFnFT7SagObuZHgUm5QOyCI=",
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-          "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
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+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.0.tgz",
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-            "fast-deep-equal": "1.0.0",
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-          "integrity": "sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=",
+          "version": "3.2.0",
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@@ -6572,6 +8293,12 @@
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+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
+          "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
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@@ -6709,50 +8436,70 @@
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-      "integrity": "sha1-007++y7dp+HTtdvgcolRMhllFwk=",
+      "version": "1.12.2",
+      "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz",
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       "requires": {
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-        "mime": "1.4.1",
+        "mime": "1.6.0",
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         "range-parser": "1.2.0",
         "time-stamp": "2.0.0"
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+          "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
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-      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-2.9.1.tgz",
-      "integrity": "sha1-eskyC2GwDrZbIQnxXIJ0f8W5NYU=",
+      "version": "2.11.2",
+      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-2.11.2.tgz",
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-        "chokidar": "1.6.1",
-        "compression": "1.7.1",
-        "connect-history-api-fallback": "1.3.0",
+        "chokidar": "2.0.3",
+        "compression": "1.7.2",
+        "connect-history-api-fallback": "1.5.0",
+        "debug": "3.1.0",
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-        "express": "4.16.1",
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+        "import-local": "1.0.0",
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         "ip": "1.1.5",
-        "loglevel": "1.5.1",
-        "opn": "5.1.0",
+        "killable": "1.0.0",
+        "loglevel": "1.6.1",
+        "opn": "5.3.0",
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-        "selfsigned": "1.10.1",
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         "strip-ansi": "3.0.1",
-        "supports-color": "4.4.0",
-        "webpack-dev-middleware": "1.12.0",
+        "supports-color": "5.4.0",
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+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
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+          "dev": true,
+          "requires": {
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           "resolved": "https://registry.npmjs.org/del/-/del-3.0.0.tgz",
@@ -6789,9 +8536,15 @@
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+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+          "dev": true
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+        "ms": {
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-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-2.0.0.tgz",
-          "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
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@@ -6801,23 +8554,31 @@
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-          "integrity": "sha1-iD992rwWUUKyphQn8zUt7RldGj4=",
+          "version": "5.4.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.4.0.tgz",
+          "integrity": "sha512-zjaXglF5nnWpsq470jSv6P9DwPvgLkuapYmfDm3JWOm0vkNTVF2tI4UrN2r6jH1qM/uc/WtxYY1hYoA2dOKj5w==",
           "dev": true,
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-            "has-flag": "2.0.0"
+            "has-flag": "3.0.0"
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-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.1.0.tgz",
-      "integrity": "sha1-atciI7PguDflMeRZfBmfkJNhUR4=",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.1.2.tgz",
+      "integrity": "sha512-/0QYwW/H1N/CdXYA2PNPVbsxO3u2Fpz34vs72xm03SRfg6bMNGfMJIQEpQjKRvkG2JvT6oRJFpDtSrwbX8Jzvw==",
       "dev": true,
       "requires": {
-        "lodash": "4.17.4"
+        "lodash": "4.17.10"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.10",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
+          "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==",
+          "dev": true
+        }
       }
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     "webpack-sources": {
@@ -6844,14 +8605,14 @@
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       "dev": true,
       "requires": {
-        "http-parser-js": "0.4.9",
-        "websocket-extensions": "0.1.2"
+        "http-parser-js": "0.4.12",
+        "websocket-extensions": "0.1.3"
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     "websocket-extensions": {
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-      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.2.tgz",
-      "integrity": "sha1-Dhh4HeYpoYMIzhSBZQ9n/6JpOl0=",
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
+      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
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diff --git a/package.json b/package.json
index 973fc914..abf2c7a7 100644
--- a/package.json
+++ b/package.json
@@ -16,13 +16,13 @@
     "file-loader": "^0.9.0",
     "fs-extra": "^5.0.0",
     "glob": "^7.1.2",
-    "json-loader": "^0.5.4",
+    "json-loader": "^0.5.7",
     "raw-loader": "^0.5.1",
-    "style-loader": "^0.19.0",
+    "style-loader": "^0.19.1",
     "url-loader": "^0.5.7",
-    "webpack": "^3.10.0",
-    "webpack-dev-server": "^2.9.1",
-    "webpack-merge": "^4.1.0",
+    "webpack": "^3.12.0",
+    "webpack-dev-server": "^2.11.2",
+    "webpack-merge": "^4.1.2",
     "yaml-loader": "^0.5.0"
   },
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