Fix version of angular in order to use a stable one.

ui/package.json

@@ -15,12 +15,12 @@
   },
   "dependencies": {
     "ace-builds": "^1.2.5",
-    "angular": "^1.5.8",
-    "angular-animate": "^1.5.8",
-    "angular-aria": "^1.5.8",
+    "angular": "1.5.8",
+    "angular-animate": "1.5.8",
+    "angular-aria": "1.5.8",
     "angular-breadcrumb": "^0.4.1",
     "angular-carousel": "^1.0.1",
-    "angular-cookies": "^1.5.8",
+    "angular-cookies": "1.5.8",
     "angular-drag-and-drop-lists": "^1.4.0",
     "angular-fullscreen": "git://github.com/fabiobiondi/angular-fullscreen.git#master",
     "angular-gridster": "^0.13.14",
@@ -29,11 +29,11 @@
     "angular-material": "^1.1.1",
     "angular-material-data-table": "^0.10.9",
     "angular-material-icons": "^0.7.1",
-    "angular-messages": "^1.5.8",
-    "angular-route": "^1.5.8",
-    "angular-sanitize": "^1.5.8",
+    "angular-messages": "1.5.8",
+    "angular-route": "1.5.8",
+    "angular-sanitize": "1.5.8",
     "angular-storage": "0.0.15",
-    "angular-touch": "^1.5.8",
+    "angular-touch": "1.5.8",
     "angular-translate": "^2.12.1",
     "angular-translate-handler-log": "^2.12.1",
     "angular-translate-interpolation-messageformat": "^2.12.1",