Bump required pooling version to 0.4.5

Fix mcavage/node-ldapjs#145

package.json

@@ -7,7 +7,8 @@
     "Trent Mick <trentm@gmail.com>",
     "Yunong Xiao <yunong@joyent.com>",
     "Denis Vuyka <denis.vuyka@gmail.com>",
-    "Pedro Palazón <kusorbox@gmail.com>"
+    "Pedro Palazón <kusorbox@gmail.com>",
+    "Patrick Mooney <patrick.f.mooney@gmail.com>"
   ],
   "name": "ldapjs",
   "homepage": "http://ldapjs.org",
@@ -32,7 +33,7 @@
     "bunyan": "0.21.1",
     "dtrace-provider": "0.2.8",
     "nopt": "2.1.1",
-    "pooling": "0.4.4"
+    "pooling": "0.4.5"
   },
   "devDependencies": {
     "tap": "0.4.1",