image.width and image.height
Merge pull request #126 from rolandleth/master

image.width and image.height
version bump - adds 'image.width' and 'image.height'
tests for 'uitabbarsystemitem' constants
Added a side parameter to tumble.
uiview_animation_tumble_spec
tumble now accepts side as a symbol parameter and as an option parameter.
tumble_in also modified in the same way.
Merge pull request #127 from rolandleth/master

Added a side parameter to tumble animation.
added 'tumble_in' specs, and related fixes.  version bump.
add support for 'style' arg in String#to_number (mirrors Numeric.string_with_style)
push