GPII-539: Correct LifecycleManager's update method to apply live updates from PCP via Websockets

This pull request derives from http://issues.gpii.net/browse/GPII-539.

It is a small one, but given that https://github.com/GPII/prefsEditors/pull/66 is in, PCP's updates will actually be applied.

I've tested with the setup for the pilots: http://wiki.gpii.net/w/index.php/Cloud4all_Pilot_2_-_Set_up_and_installation