block invalidate overflow (resize -> layout.refresh() -> child.width -> child.parent.invalidate(Layout) -> layout.refresh() -> child.width) when child.percentWidth > -1
align constants
grid layout fixes (correct percent size, h/valign support, child percent size when not autoSize container)
resize event
Minor fixes
Merge pull request #22 from profelis/master

some small fixes
Small fix for text input
Invalidation fixes
Fixed invalidation for scrollview
Added "stretch" property to Image
Fixed scollview bug

(Stopped tabs from being drag scrolled properly)
Added UIEvent

Using UIEvent means you can get back displayObject instead of the sprite
target
Popup dispose flag
GridLayout fixes
More GridLayout fixes
GridLayout fixes
Minor style improvements
Fixed image stretch bug
Added alignments to V/HBox
haxelib