Added inefficient styler

This styler 'works' but will visit each element with each style to try
and match a selector.
Added $.concat and $.add
$.find() should not include the current element and should allow an empty query to return all descendants
Added 'is' helper to mini.js to determine whether an element matches a selector with a full path
Added support for global styles

Styles will only be applied to a node if it already has a Window as a
descendant. If the node doesn't have a window then this will be deferred
until it does - this makes sure that we have the full context of the
node.
Added Ti.UI.FILL
Support Ti.* attributes as strings
Add support for .styl modules
Moved stylus generation outside of stitch
Fixed bugs on style converter
Moved style mixins to styles/tb
Moved generated .js files to a 'generated' directory
Updated generator to include styles
Make sure titanium-backbone style path is always included