HipChatNotifier appropriately uses class variables

Urls posted to hipchat client were wrong before. This fixes the issue by loading the correct URL from the HipChatNotifier class variable.
Url was:
file:///Applications/HipChat.app/Contents/Resources/nulljob/TEST_HIPCHAT/5/

Url should have been:
http://172.24.46.2:8080/job/TEST_HIPCHAT/5/

Also fixed spaces/tabs.