Added tintColor convenience methods

tintColor is now forwarded to the underlying view, and much more importantly, the node is notified when the tintColor changes on the view.
Use full method signatures in docs
Expand more method signatures
Expand touch handling methods
Fix text highlighting in UIScrollView

Highlight target layers with non-zero bounds.origin exhibited broken
text highlighting behavior. Highlights would appear offset by the
layer’s bounds.origin, and would not align with their target text. This
most often appeared in UIScrollView, where highlights would appear
incorrectly offset once the scroll view was scrolled. Fix by accounting
for bounds.origin in the calculations of the text overlay highlight
rects.
Add point parameter to ASTextNode delegate methods

Outfit ASTextNodeDelegate shouldHighlight and shouldLongPress methods
with a point parameter that describes the location of the relevant
touch.
Changed ASControlNodeEvent enum to NS_OPTIONS so that it can be used in swift
Merge pull request #87 from raphaelmor/enum-update

Changed ASControlNodeEvent enum to NS_OPTIONS so that it can be used in swift
Merge pull request #85 from bcunning/text-tap-delegate

Add point parameter to ASTextNode delegate methods
Merge pull request #84 from bcunning/highlight-origin-fix

Fix text highlighting in UIScrollView
Merge pull request #75 from davbeck/master

Added tintColor convenience methods
Merge pull request #82 from mrh-is/patch-1

Use full method signatures in docs
Support background colour and selection style on ASCellNodes.

Most UITableViewCell properties aren't useful in conjunction with
ASCellNode -- the system's UIView properties are unsupported for
performance reasons, and properties that configure them (e.g., content
indentation) don't affect custom node hierarchies.  This patch adds
support to _ASTableViewCell for the properties that *are* useful.

r=scottg
Fix untappable link in kittens example
Merge pull request #92 from ocrickard/master

Fix untappable link in kittens example