Fixes for when frame origin is not 0
Merge branches 'master' and 'master' of github.com:richardleggett/SlidingViewStack

# By Robbie Bykowski
# Via Robbie Bykowski (1) and richardleggett (1)
* 'master' of github.com:richardleggett/SlidingViewStack:
  Mention iOS versions in README.md
  Add a better .gitignore file
  Forgot to remove QuartzCore when experimenting
  Fix memory growth with example code.
  A few bits of clean up

# By Robbie Bykowski
# Via Robbie Bykowski (1) and richardleggett (1)
* 'master' of github.com:richardleggett/SlidingViewStack:
  Mention iOS versions in README.md
  Add a better .gitignore file
  Forgot to remove QuartzCore when experimenting
  Fix memory growth with example code.
  A few bits of clean up

Conflicts:
	SlidingViewStack/SlidingViewStack.m
Bug where scrolling was glitchy when view stack frame origin was not 0,0.