chore: update Karma and SauceLabs launcher

This should improve stability as it contains capture timeout (if a browser does not capture in a given timeout it gets killed) and retry (if a browser fails to start, Karma will try n times before failing).

package.json

@@ -20,13 +20,13 @@
     "q-io": "~1.10.6",
     "qq": "~0.3.5",
     "shelljs": "~0.2.6",
-    "karma": "~0.11",
+    "karma": "~0.11.11",
     "karma-jasmine": "~0.1.0",
     "karma-chrome-launcher": "~0.1.0",
     "karma-firefox-launcher": "~0.1.0",
     "karma-ng-scenario": "~0.1.0",
     "karma-junit-reporter": "~0.2.1",
-    "karma-sauce-launcher": "~0.1.1",
+    "karma-sauce-launcher": "~0.2.0",
     "karma-script-launcher": "~0.1.0",
     "yaml-js": "~0.0.8",
     "marked": "0.2.9",