Scale3Image, Scale9Image: avoid error from Quad for zero dimensions. Scale3Textures, Scale9Textures: enforce minimum dimensions for center regions. (references PrimaryFeather/Starling-Framework#495)
docs fixes (closes #822)
BitmapFontTextRenderer: centered text is rounded to the nearest integer x position to avoid distortion
doc tweaks
HorizontalLayout, VerticalLayout: support for percentWidth and percentHeight with non-virtual layouts (closes #445)
HorizontalLayout: can use percentHeight no matter the value of useVirtualLayout. VerticalLayout: can use percentWidth no matter the value of useVirtualLayout. (references #445)
1.3 beta updates
update copyright year
organize imports
HorizontalLayoutData, VerticalLayoutData: percentWidth and percentHeight may be specified in the constructor (references #445)
Item renderers: fix for null reference in layout when icon or accessory is not used
Scroller: page indices are calculated while dragging (closes #831), organized refreshScrollValues() into smaller functions to improve readability.
docs fix (closes #834)
Drawers: check for null events on drawer toggle (closes #814), added and removed listeners in drawer toggle event type setters instead of invalidating (which was broken anyway)
Drawers: optional overlay skin over content (closes #837)
DrawersExplorer: refactored so that Drawers can be skinned by theme
Themes: added overlaySkin to Drawers
Drawers: fixed issue where overlay wasn't sized correctly
DefaultPopUpManager: when centering an object, rounds to the nearest pixel (closes #832)
ScrollText: support for disabled text format