Status bar visiblity now easily settable from any view controller.

Works both for pushed and presented/modal view controllers.

Change-Id: If996e7cf711a7bb0f782a2b6631ccadaacf52ae8
Fix for edit pencil not working if user not logged in.

Change-Id: I8dae0e3212905e21134787ef6fad094cf0d8c764
Merge "Status bar visiblity now easily settable from any view controller."