Merge branch 'develop'
Version bump.
Easier to run the examples.
Fixed a documentation typo.
Get rid of the WEBrick.
A set of routes to deal with the fallback; using many rack apps was confusing things, so used routes instead.
Removed class methods for theme and themes, they just don't work with the Rack architecture, at least not the way I'm using them; Better fallback script than the jQuery one, but still doesn't work because certain browsers block access to externally loaded CSS rules; added some extra keys the internal paths hash to help ascertain which theme is being called; added a fallback option to the cdn method, mainly to help with testing but also because it might be wanted.
Added to changes.