Updating dev dependencies

package.json

@@ -31,8 +31,8 @@
   },
   "homepage": "https://github.com/mzabriskie/axios",
   "devDependencies": {
-    "coveralls": "2.11.8",
-    "es6-promise": "3.1.2",
+    "coveralls": "^2.11.9",
+    "es6-promise": "^3.2.1",
     "grunt": "0.4.5",
     "grunt-banner": "0.6.0",
     "grunt-cli": "0.1.13",
@@ -44,27 +44,27 @@
     "grunt-ts": "5.3.2",
     "grunt-webpack": "1.0.11",
     "istanbul-instrumenter-loader": "^0.2.0",
-    "jasmine-core": "2.4.1",
-    "karma": "0.13.21",
-    "karma-chrome-launcher": "^0.2.2",
-    "karma-coverage": "0.5.4",
-    "karma-firefox-launcher": "^0.1.7",
-    "karma-jasmine": "0.3.7",
-    "karma-jasmine-ajax": "0.1.13",
-    "karma-opera-launcher": "^0.3.0",
-    "karma-phantomjs-launcher": "1.0.0",
-    "karma-safari-launcher": "^0.1.1",
-    "karma-sauce-launcher": "^0.3.1",
-    "karma-sinon": "1.0.4",
-    "karma-sourcemap-loader": "0.3.7",
-    "karma-webpack": "1.7.0",
+    "jasmine-core": "^2.4.1",
+    "karma": "^0.13.22",
+    "karma-chrome-launcher": "^1.0.1",
+    "karma-coverage": "^1.0.0",
+    "karma-firefox-launcher": "^1.0.0",
+    "karma-jasmine": "^1.0.2",
+    "karma-jasmine-ajax": "^0.1.13",
+    "karma-opera-launcher": "^1.0.0",
+    "karma-phantomjs-launcher": "^1.0.0",
+    "karma-safari-launcher": "^1.0.0",
+    "karma-sauce-launcher": "^1.0.0",
+    "karma-sinon": "^1.0.5",
+    "karma-sourcemap-loader": "^0.3.7",
+    "karma-webpack": "^1.7.0",
     "load-grunt-tasks": "3.4.1",
-    "minimist": "1.2.0",
-    "phantomjs-prebuilt": "2.1.6",
-    "sinon": "1.17.3",
-    "webpack": "1.12.14",
-    "webpack-dev-server": "1.14.1",
-    "url-search-params": "0.5.0"
+    "minimist": "^1.2.0",
+    "phantomjs-prebuilt": "^2.1.7",
+    "sinon": "^1.17.4",
+    "webpack": "^1.13.1",
+    "webpack-dev-server": "^1.14.1",
+    "url-search-params": "^0.5.0"
   },
   "browser": {
     "./lib/adapters/http.js": "./lib/adapters/xhr.js"