* env.dumpLineNumbers was being lost when doing "offline" compilation
(within node.js)
* Added documentation for the changed options
* --line-numbers now takes a parameter
(either "comments", "mediaquery" or "all")
* The system can now again output mediaqueries for FireLESS
* Moved comments tests in debug/comments, will duplicate
for mediaquery and for "all"
Everything is still utterly broken though, tests still fail.