added motion_layouts method
use string, not symbol
moved `to_instance` to module function
updated comments
fixes the default return values for orientation-related methods
added motion_layouts method
use string, not symbol
call the method `auto` and use instance_exec.  @qrush made me do it!
Merge branch 'motion-layouts' of github.com:rubymotion/teacup into motion-layouts

Conflicts:
	lib/teacup/z_core_extensions/ui_view_controller.rb
added some documentation
Merge pull request #65 from GantMan/master

Moved dummy add to the correct location.
raise error if motion-layout is not installed
Merge branch 'master' of github.com:rubymotion/teacup
rm old comment
better syntax
Merge branch 'master' of github.com:rubymotion/teacup
i've had better luck with these for some reason
don't need these
fixes to gradient and tests
added the example app from #inspect