Added simple CSS compression
Added simple CSS compression

...by removing all newlines, whitespace and comments from the
generated CSS file.
None of the CSS sent to the browser is maintained by hand now, so
adding some compression is easy. :-)

This compression is disabled if the debug config flag is enabled,
considering debugging an unreadable CSS file isn't fun.

morkt/vndb,morkt/vndb,erengy/vndb,erengy/vndb,christian-roggia/vndb,morkt/vndb,christian-roggia/vndb,morkt/vndb,erengy/vndb,morkt/vndb,christian-roggia/vndb