This module takes a list of CSS files and concatenates them, making sure to
honor any valid @import statements included in the files.

The benefit of this is that you get to keep your CSS as individual files, but
can serve it to users in one big file, saving the overhead of possibly dozens
of HTTP requests.

Following the CSS 2.1 spec, @import statements must be the first rules in a CSS
file. Media-specific @import statements will be honored by enclosing the
included file in an @media rule. This has the side effect of actually improving
compatibility in Internet Explorer, which ignores media-specific @import rules
but understands @media rules.

It is possible that future versions will include methods to compact whitespace
and other parts of the CSS itself, but this functionality is not supported at
the current time.

Authors:
--------
Thomas Sibley ,
Ruslan Zakirov