PopUpManager: removed old workaround for a Starling bug that is no longer needed (closes #803)
TiledRowsLayout, TiledColumnsLayout: properly uses contentX and contentY on LayoutBoundsResult returned by layout()
TextFieldTextRenderer: workaround for wrapping bug in flash.text.TextField (references #566)
added IValidating interface. display objects in feathers.display.* implement IValidating. updated code that expected IFeathersControl to call validate() to use IValidating instead (closes #810)
Text renderers: better handling of contentScaleFactor (closes #805)
BaseDefaultItemRenderer: documented commitData() (closes #575)
TextBlockTextRenderer: fixed baseline (closes #815)
TextBlockTextRenderer: made the calculation for truncation a little fuzzy to avoid floating point errors
Item renderers: corrected maxWidth calculation for icon and accessory labels to account for layoutOrder.
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