chore(*): Pin ng2 dependencies

Author: christopherthielen

package.json

@@ -41,13 +41,13 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "@angular/common": "^2.0.0-rc.1",
-    "@angular/compiler": "^2.0.0-rc.1",
-    "@angular/core": "^2.0.0-rc.1",
-    "@angular/platform-browser": "^2.0.0-rc.1",
-    "@angular/platform-browser-dynamic": "^2.0.0-rc.1",
-    "rxjs": "^5.0.0-beta.6",
-    "zone.js": "^0.6.12",
+    "@angular/common": "=2.0.0-rc.1",
+    "@angular/compiler": "=2.0.0-rc.1",
+    "@angular/core": "=2.0.0-rc.1",
+    "@angular/platform-browser": "=2.0.0-rc.1",
+    "@angular/platform-browser-dynamic": "=2.0.0-rc.1",
+    "rxjs": "=5.0.0-beta.6",
+    "zone.js": "=0.6.12",
     "babel-core": "^5.8.14",
     "conventional-changelog": "^1.1.0",
     "conventional-changelog-cli": "^1.1.1",