ci: Update Safari to 11.0 (OSX) on SauceLabs (#1127)

Author: kamilogorek

karma.sauce.config.js

@@ -35,7 +35,7 @@ var customLaunchers = {
     base: 'SauceLabs',
     browserName: 'safari',
     platform: 'OS X 10.12',
-    version: '10.0'
+    version: '11.0'
   },
   sl_ios: {
     base: 'SauceLabs',