remove uneeded animated parameter

Since the user is supplying an animation transition for
the operation, it can safely be assumed that the user wants
the transition to be animated.
add usage section to README

Conflicts:
	README.md
add support for reversible transitions
Merge pull request #2 from shopkeep/remove-uneeded-animated-param

remove uneeded animated parameter
Merge pull request #3 from shopkeep/README-usage

add usage section to README
Merge pull request #4 from shopkeep/reversible-transitions

add support for reversible transitions
Merge pull request #5 from shopkeep/master

Add some basic docs, animation class, child controller transitioning
Add public header file
Major refactoring
Formatting
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
More refactoring
Update README.md
Method rename
Update README.md