More struct types
incorrect argument name
update pod spec
Update README.md
allow UIViewController subclasses to be used in stylesheet

- make CASStyleableItem consistent with UIKit
- add cas_alternativeParent to allow CASStyleableItem to have up to two parents
- UIViewController implements CASStyleableItem
- override UIViewController setView: to assign UIViewController as view's cas_alternativeParent
unit tests
Merge pull request #8 from cloudkite/uiviewcontroller-parent

Ability to specify UIViewController class/subclass in style selector hierarchy
Update CHANGELOG.md
test setNeedsUpdateStyling count
v0.0.2
fix post_install
Update README.md
Change deployment targets to iOS6
Update README.md
Update README.md

remove travis status until it's fixed
adding manual __gcov_flush
Update README.md
improve CASLexerSpec
Add rgb, rgba colour support
Add hsl, hsla colour support