Update dependencies to the latest versions

This commit updates the test dependencies to the latest versions.

package.json

@@ -28,22 +28,22 @@
   "devDependencies": {
     "ansi": "^0.3.0",
     "casperjs": "^1.1.0-beta3",
-    "chai": "^1.10.0",
-    "commander": "^2.5.0",
-    "karma": "^0.12.25",
+    "chai": "^2.1.0",
+    "commander": "^2.6.0",
+    "karma": "^0.12.31",
     "karma-chai": "^0.1.0",
-    "karma-mocha": "^0.1.9",
-    "karma-mocha-reporter": "^0.3.1",
+    "karma-mocha": "^0.1.10",
+    "karma-mocha-reporter": "^1.0.0",
     "karma-phantomjs-launcher": "^0.1.4",
     "karma-sauce-launcher": "^0.2.10",
-    "karma-sinon": "^1.0.3",
+    "karma-sinon": "^1.0.4",
     "karma-sinon-chai-latest": "^0.1.0",
-    "mocha": "^2.0.1",
+    "mocha": "^2.1.0",
     "open": "^0.0.5",
-    "phantom": "^0.7.0",
-    "phantomjs": "^1.9.12",
-    "sinon": "^1.12.1",
-    "sinon-chai": "^2.6.0",
+    "phantom": "^0.7.2",
+    "phantomjs": "^1.9.15",
+    "sinon": "^1.12.2",
+    "sinon-chai": "^2.7.0",
     "spooky": "^0.2.5",
     "temp": "^0.8.1"
   }