stop npm trying to install non BC version of karma-mocha

package.json

@@ -21,7 +21,7 @@
     "grunt": "~0.4.1",
     "karma": "~0.10.1",
     "grunt-contrib-jshint": "~0.6.3",
-    "karma-mocha": "~0.1.0",
+    "karma-mocha": "0.1.3",
     "karma-phantomjs-launcher": "~0.1.0",
     "mocha": "~1.12.0",
     "karma-coffee-preprocessor": "~0.1.0",