chore(travis): enable SL video recording

Author: vojtajina

karma-shared.conf.js

@@ -123,6 +123,7 @@ module.exports = function(config, specificOptions) {
     config.sauceLabs.build = buildLabel;
     config.sauceLabs.startConnect = false;
     config.sauceLabs.tunnelIdentifier = process.env.TRAVIS_JOB_NUMBER;
+    config.sauceLabs.recordScreenshots = true;
 
     // TODO(vojta): remove once SauceLabs supports websockets.
     // This speeds up the capturing a bit, as browsers don't even try to use websocket.