Merge pull request #31 from macoslib/master

Merged changes
Merge branch 'macoslib-master'
Merge pull request #32 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Merge pull request #33 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Merge pull request #34 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Merge pull request #35 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Merge pull request #36 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Merge pull request #37 from macoslib/master

Merge changes
Added TextAreaExtension.FontBackgroundColor
Added convenience methods for NSWindow CollectionBehaviors.
Merge branch 'macoslib-master'

Conflicts:
	macoslib/Cocoa/NSColor.rbbas
Merge NSColor changes
Restored original of conflicted NSColor
Added Smooth Resize method to NSWindow.
Renamed smooth resize options in WindowExtensions.
Add convenience method to set NSWindow top border thickness.