Pin karma, karma-mocha dev dependencies (#4)

Author: Peripheral1994

integrations/analytics.js-integration-doubleclick-floodlight/package.json

@@ -46,7 +46,7 @@
     "karma-chrome-launcher": "^1.0.1",
     "karma-coverage": "^1.0.0",
     "karma-junit-reporter": "^1.0.0",
-    "karma-mocha": "^1.0.1",
+    "karma-mocha": "1.0.1",
     "karma-phantomjs-launcher": "^1.0.0",
     "karma-sauce-launcher": "^1.0.0",
     "karma-spec-reporter": "0.0.26",