fix(build): lock CI tests to use Angular 1.4.4

Author: ThomasBurleson

package.json

@@ -5,12 +5,12 @@
     "url": "git://github.com/angular/material.git"
   },
   "devDependencies": {
-    "angular": "^1.4.0",
-    "angular-animate": "^1.4.0",
-    "angular-aria": "^1.4.0",
-    "angular-messages": "^1.4.0",
-    "angular-mocks": "^1.4.0",
-    "angular-route": "^1.4.0",
+    "angular": "1.4.4",
+    "angular-animate": "1.4.4",
+    "angular-aria": "1.4.4",
+    "angular-messages": "1.4.4",
+    "angular-mocks": "1.4.4",
+    "angular-route": "1.4.4",
     "angularytics": "^0.3.0",
     "canonical-path": "0.0.2",
     "cli-color": "^1.0.0",
@@ -64,4 +64,4 @@
     "merge-base": "git merge-base $(npm run -s current-branch) origin/master",
     "squash": "git rebase -i $(npm run -s merge-base)"
   }
-}
+}