use '0.0' to indicate 'use system scale' when creating an image context
detect ios/osx correctly when compiling an extension
Added MotionKit ids to sugarcube_to_s
Merge pull request #153 from jamonholmgren/feature/motion-kit

Added MotionKit ids to sugarcube_to_s
Sugarcube-REPL is only available in development.
Merge pull request #154 from jamonholmgren/kernel_dev

Monkeypatch Kernel in development mode only
correctly include ios/osx/cocoa files when compiling an extension
version bump
Add in respond_to? method on sugarcube anonymous
Add in respond_to? feature and add coverage. Fixes #155
Merge pull request #156 from jonmorehouse/master

Fixes #155
version bump
Merge branch 'master' of github.com:rubymotion/sugarcube