update sauce config in karma

@@ -98,11 +98,11 @@ module.exports = function(config) {
 
     // global config for SauceLabs
     sauceLabs: {
-      username: "sheff555",
-      accessKey: "d04372cc-0fc3-4e59-aa02-3cfd9df03240",
       startConnect: true,
-      tunnelIdentifier: 'uniquekarmaidentifier',
-      testName: 'ps test sample'
+      tunnelIdentifier: process.env.TRAVIS_JOB_NUMBER,
+      build: process.env.TRAVIS_BUILD_NUMBER,
+      testName: process.env.TRAVIS_BUILD_NUMBER + process.env.TRAVIS_BRANCH,
+      recordScreenshots: false
     },
 
     //define SL browsers