Tilde versions as later versions of TS break the build

Author: mendhak

package.json

@@ -38,11 +38,11 @@
   },
   "dependencies": {
     "bower": "~1.7.9",
-    "@types/angular": "^1.6.7",
-    "@types/intro.js": "^2.4.0",
-    "grunt-ts": "^6.0.0-beta.11",
-    "grunt-tslint": "^4.0.1",
-    "tslint": "^4.5.1",
-    "typescript": "^2.2.1"
+    "@types/angular": "~1.6.7",
+    "@types/intro.js": "~2.4.0",
+    "grunt-ts": "~6.0.0-beta.11",
+    "grunt-tslint": "~4.0.1",
+    "tslint": "~4.5.1",
+    "typescript": "~2.2.1"
   }
 }