++Archimedes
Implement -insetTop:left:bottom:right
Add nullRect parameter to -insetTop:left:bottom:right:
Add tests for -insetTop:left:bottom:right:

Test the different expected rects between Mac and iOS as well.
Add -inset:nullRect:
Tests for -inset:nullRect:
Name the signals
Fix merge conflicts
Rename inset:nullRect: -> insetBy:nullRect:
Refactor other inset operators to use -insetBy:nullRect:
Stop observing self in methods that call through to -insetBy:nullRect:
Merge pull request #86 from indragiek/more-insets

Add more operators for using edge insets