Added basic HTTP compression.
Fixed function name to match the theme.
Added benchmark for compression.
Moved tests into their own file.
Test app needs the filter in order to test it.
Ran go fmt.
Renamed variable to be more descriptive.
Clarified second variable name.
Added q=0.X detection.
Removed extra log I missed and added support for "text/css; charset=utf8"
Merge pull request #350 from CasualSuperman/feature-compression

Added basic HTTP compression via Filters