Updated and vendorized ace editor to ace-1.1.3
Added navigation_children to drop to only include children that are included in navigation
Got them backwards.
ignore gemsets
Added icons for non-image Assets
Added link and icon to asset form
Merge branch '0.3-stable'

Conflicts:
	app/views/smithy/assets/_form.html.erb
	lib/smithy/liquid/drops/page.rb