Refactoring for Manage features

I've left the function pausePermsSave() in the controller for now, 

Wasn't sure if we should merge with the other  pause functions:
pausePermsSave(), pausAttachmentMaintenance(), pauseRepairProcess()

In the end they all do the same.. stopping a process to avoid overload and continue after a short time..

Hopefully this PR doesn't interfere with @Spuds work on the custom profile fields.
http://www.elkarte.net/index.php?topic=291.msg1936#new