Merge pull request #54 from bobbywarner/master

Code cleanup
adding encoding support to dev mode
added assetPath method to groovy pages
version bump with assetPath directive and more encoding love
added asset path exists closure
content types can now be a list of content types
well thats not needed there
clean up of asset controller and Jetty Support
clean up of asset controller and Jetty Support
adding more test coverage
resolved precompiler issue
cleaning up implementation