Removed unused animationStyle and fix file headers.
Removed deprecated Expecta Pod. Using the new one.
Fix import headers.
Removed tests for animation style.
Removed Expecta snapshot pod
Merge branch 'master' of github.com:barbosa/BBSImageBackgroundView

Conflicts:
	Example/BBSImageBackgroundView/BBSViewController.m
	Example/Podfile.lock
	Example/Tests/ModelTests.m
	Pod/Classes/BBSBackgroundItem.h
	Pod/Classes/BBSBackgroundItem.m
Added *.orig to gitignore.