Add + run dependency updating (bash) script (#401)

* Add + run dependency updating script

* Address comments

Change-Id: I67af9d3ab9e461b579dbaee92274b6163d73c23e

* Run dependency script again

Change-Id: Icbec4acb2cc6bcfa40e0a3a705c5a1059d64efa5

* Update license

Change-Id: Ic1dd0a1bd34356e415bdbf005b81a71a8d2695c2

* Update (more) dependencies

Change-Id: Idaed95b9cfe486797fa75946b6f55e7e702217b8

Author: Ace Nassri

monitoring/snippets/package.json

@@ -18,16 +18,16 @@
     "test": "npm run system-test"
   },
   "dependencies": {
-    "@google-cloud/monitoring": "0.2.0",
-    "async": "2.3.0",
+    "@google-cloud/monitoring": "0.2.2",
+    "async": "2.4.1",
     "googleapis": "19.0.0",
-    "yargs": "7.1.0"
+    "yargs": "8.0.2"
   },
   "devDependencies": {
-    "@google-cloud/nodejs-repo-tools": "1.4.14",
+    "@google-cloud/nodejs-repo-tools": "1.4.15",
     "ava": "0.19.1",
-    "proxyquire": "1.7.11",
-    "sinon": "2.1.0"
+    "proxyquire": "1.8.0",
+    "sinon": "2.3.4"
   },
   "cloud-repo-tools": {
     "requiresKeyFile": true,