Changing minification

Dropping yui, it has issues with jruby
Minifying CSS with sass (note: need to do this for less too) if
production
Added uglifier

Modified the gemspec
Adding correct platform javascript gems

NOTE: This still may not do it for macs, need someone to test
Swapping out markdown implementations
Tests pass on haml now

Finally found the correct combination for jruby and mri
Also fixed a bug in a test I think. Front matter is delineated by "---"
not "--". That's what the front_matter_handler is telling me. With only
"--" we have a page, which is not what the test was.

Removed a file I shouldn't have committed anyway
Adding jruby to the travis builds
Small tweak for jruby on windows
Fixing the test on windows
Updating tilt in the gemspec
Merge pull request #222 from LightGuard/jruby

Jruby support