Add style for gallery label

This is a subtle label that can be used to denote
different sections in the preview area.
Add some love to the gallery navigation

Module links are now defined in an array based on
type with the module and name.
Add channel stream to gallery
Minor tweaks to stream
Remove compiled css file
Ignore compiled css file
Move gallery CSS and JavaScript to separate files

The configuration objects including require, cilantro,
views, regions, layouts and colors are still located in
gallery/index.html for readability.
Add ability to expand/collapse all arguments in the stream
Merge new gallery in.