Let's actually have some colour unit tests.
Load from plists as well as morsel files.
Added support for "x.attribute = y.attribute * 1 + 0" style constraints.
Never automatically assume a view is called root.
Buttons background images now load from image group
Implemented missing method.
Some extra safeguards to prevent bad data.
Experimental plist support.
Let's actually have some colour unit tests.
Merge branch 'feature/plists'

* feature/plists:
  Experimental plist support.
  Load from plists as well as morsel files.
  Let's actually have some colour unit tests.

Conflicts:
	Source/CMorsel.m
	Source/CMorselContext.h
	Source/CMorselContext.m
Cleanup after bad merge.
Improve relationship regex.
Unit tests for relationship constants and multipliers.