Add code coverage using blanket.js

package.json

@@ -4,12 +4,17 @@
   "description": "MySQL adapter for Loopback Data",
   "main": "index.js",
   "scripts": {
-    "test": "make test"
+    "test": "make test",
+    "blanket": {
+      "pattern": "//^((?!(node_modules|test)).)*$/"
+    },
+    "coverage": "mocha -r blanket -R html-cov > coverage_loopback-connector-mysql.html"
   },
   "dependencies": {
     "loopback-datasource-juggler": "git+ssh://git@github.com:strongloop/loopback-datasource-juggler.git",
     "mysql": ">= 2.0.0-alpha8",
-    "async": "latest"
+    "async": "latest",
+    "blanket": "latest"
   },
   "devDependencies": {
     "coffee-script": "latest",