cssCompressor documentation is lacking

[bbergstrom]

cssCompressor    CssCompressorProcessor  A css compressor, implemented by Andy Roberts.

This processor could use better documentation on your wiki: https://code.google.com/p/wro4j/wiki/AvailableProcessors

We tried to use this in our application, but it will break styles written using media queries for responsive design because it moves things around for efficiency. This should be documented warning possible users of said processor.