Implemented a custom JSON parser b/c json_pure is broken in IR 1.9
Added Sass and Coffee gem
Implemented asset pipeline and various fixes to get sprockets working under IronSP
Merge branch 'sp2013' of github.com:ExpertsInside/IronSP into asset_feature

* 'sp2013' of github.com:ExpertsInside/IronSP:
  Moves wrapper backt to IronSP; fixes logging issue
Simplified asset pipeline when precompiling assets