run browser test in serie

ci/browser_tests.sh

@@ -30,11 +30,11 @@ while [ ! -f "$SAUCECONNECT_READYFILE" ]; do
   sleep .5
 done
 
-# npm run nightwatch_remote_chrome || TEST_EXITCODE=1
-# npm run nightwatch_remote_firefox || TEST_EXITCODE=1
-# npm run nightwatch_remote_safari || TEST_EXITCODE=1
+npm run nightwatch_remote_chrome || TEST_EXITCODE=1
+npm run nightwatch_remote_firefox || TEST_EXITCODE=1
+npm run nightwatch_remote_safari || TEST_EXITCODE=1
 # npm run nightwatch_remote_ie || TEST_EXITCODE=1
-npm run nightwatch_remote_parallel || TEST_EXITCODE=1
+# npm run nightwatch_remote_parallel || TEST_EXITCODE=1
 
 node ci/sauceDisconnect.js "$SAUCECONNECT_USERNAME" "$SAUCECONNECT_ACCESSKEY" "$SAUCECONNECT_JOBIDENTIFIER"