chore(travis): switch back to SauceLabs

I think we are pretty close to be able to use both.

The xhr-polling seems to be pretty stable, but I'm having problems with multiple SSH tunnels (on BS), so let's try to switch back to SL.

.travis.yml

@@ -13,7 +13,7 @@ env:
 
 before_script:
   - mkdir -p $LOGS_DIR
-  - ./lib/browser-stack/start-tunnel.sh
+  - ./lib/sauce/sauce_connect_setup.sh
   - npm install -g grunt-cli
   - grunt bower
   - grunt bower

karma-shared.conf.js

@@ -122,6 +122,10 @@ module.exports = function(config, specificOptions) {
     config.transports = ['websocket', 'xhr-polling'];
     config.browserStack.build = 'TRAVIS #' + process.env.TRAVIS_BUILD_NUMBER + ' (' + process.env.TRAVIS_BUILD_ID + ')';
 
+    // TODO(vojta): remove once SauceLabs supports websockets.
+    // This speeds up the capturing a bit, as browsers don't even try to use websocket.
+    config.transports = ['xhr-polling'];
+
     // Debug logging into a file, that we print out at the end of the build.
     config.loggers.push({
       type: 'file',

lib/grunt/utils.js

@@ -295,7 +295,7 @@ module.exports = {
       stream: options && options.stream
     };
 
-    args.push('--port=' + this.availablePorts.pop());
+    args.push('--port=' + this.sauceLabsAvailablePorts.pop());
 
     if (args.indexOf('test:e2e') !== -1 && grunt.option('e2e-browsers')) {
       args.push('--browsers=' + grunt.option('e2e-browsers'));

travis_build.sh

@@ -5,5 +5,5 @@ set -e
 export SAUCE_ACCESS_KEY=`echo $SAUCE_ACCESS_KEY | rev`
 
 grunt parallel:travis --reporters dots \
-  --browsers BS_Chrome,BS_Safari,BS_Firefox,BS_IE_8,BS_IE_9,BS_IE_10,BS_IE_11 \
-  --e2e-browsers BS_Chrome
+  --browsers SL_Chrome,SL_Safari,SL_Firefox,SL_IE_8,SL_IE_9,SL_IE_10,SL_IE_11 \
+  --e2e-browsers SL_Chrome