Refactor code to make it more readable

Conflicts:
	LXRCVFL Example using Storyboard/LXRCVFL Example using Storyboard/LXCollectionViewController.m
	LXReorderableCollectionViewFlowLayout/LXReorderableCollectionViewFlowLayout.h
	LXReorderableCollectionViewFlowLayout/LXReorderableCollectionViewFlowLayout.m
	README.md
reverting to earlier commit that is compatible with my subclass
[#293 state:resolved]
added long press to hits to stop while playing