Fixed tslint to 3.8.0 due to problems. #2

Signed-off-by: Sebastian Haas <sebastian@haas.tech>

package.json

@@ -55,7 +55,7 @@
     "mocha": "^2.5.3",
     "phantomjs-prebuilt": "^2.1.7",
     "tsify": "^1.0.0",
-    "tslint": "^3.8.0",
+    "tslint": "3.8.0",
     "typescript": "^1.8.10",
     "typings": "^1.3.1"
   }