The current layout mechanism doesn't support SIZE/FILL behavior as described in
https://wiki.appcelerator.org/display/spe/UI+Composite+Layout+Behavior+Spec
Several things need to happen to support SIZE/FILL including:
* Re-architect layout into two phases so that FILL items can be sized according to the space left over after the other controls are layed out
* Move positioning code from element's doLayout into the layout class
* Update default width and height hidden properties to use size/fill instead of auto and 100%
* Implement support for unit conversions/etc.
Pull Request: https://github.com/appcelerator/titanium_mobile/pull/1555
Should be tested against the attached app and Kitchen Sink.
Closing ticket as fixed.