Set default height to 0
updated ScoreView to ascertain image dimensions synchronously (thanks jimmy) but still work with layout system.
works with or without text/characterData init opts
respects horizontalAlign property
way more efficient View.getBoundingShape
pass layout, width, height to container. removed origScale.
simulator device flags (thanks chaitanya)
Merge branch 'develop' into mar-scoreview
Merge pull request #143 from gameclosure/mar-scoreview

better ScoreView
small scoreview optimization from jimmy branch
TextEditView + fixes to TextInputView
iOS falls back to InputPrompt. emit Change instead of onChange.
removed redundant _opts set
removed unnecessary supr assignment and comment.
color falls back to 'black'. new property: 'hintColor'. style consistency fixes.
Merge pull request #145 from gameclosure/edit-text-mar

Edit text mar
new scaleUI engine option
Merge pull request #146 from gameclosure/feature-scaleui

new scaleUI engine option
better ImageScaleView
compute clipping bounds. debug mode for cover/contain. no default ImageScaleView clip.