Whoops, had a focus issue that got committed accidentally...
Add back color scheme to external API

To prevent a major release (and breaking backwards compatibility) mark
color scheme as deprecated but proxy it forward to tint color
internally.
Merge branch 'combine-tint-and-color-scheme' into integration

Conflicts:
	VENTokenField/VENToken.m
	VENTokenField/VENTokenField.m
	VENTokenFieldSample/ViewController.m