Updated themes
Use of "marked" to handle markdown (marked library included)
Switched from " to '
Removed manual class addition/modification. Now uses classList
Implemented slide content parsing
Added the example index file (in example). It is from the "template" repo (github.com/shower/template)
Modified code in example JSON so that it uses " for the attributes
Modified code in example JSON so that each individual line of code can be "marked" to highlight code elements (not implemented yet)
Merge branch 'master' of git://github.com/shower/shower

Conflicts:
	themes/bright
	themes/ribbon