Return 0 in barWidthForProtocol if no protocol was set
removed drawinf of background when in full screen toolbar
Merge branch 'develop'
Merge branch 'master' into develop

# By Gunnar Herzog (1) and rico becker (1)
* master:
  removed drawing of background when in full screen toolbar
  Return 0 in barWidthForProtocol if no protocol was set

Conflicts:
	KFURLBar.podspec
	KFURLBar/Sources/KFURLBar.m