There were some issues with the interplay between an array
being passed, and the method being overloaded. Individually,
both would work, but when they're combined, it would fail.
I admit, having just this 1 Exception class in the root of the
project was a bad idea...
But now I can't take it away without breaking backwards compatibility:
people could be catching errors of this class.
So all new Exception classes have to inherit from this old one (it's
not worth breaking BC over, imo)
Also renamed the new ones to be "Exceptions" (plural), to avoid
confusing that namespace with the original exception class name.
Issue: https://github.com/matthiasmullie/minify/issues/96
Updates:
- Added css files for testing and a new test-case;
- created new exception types and grouped them into separated directory;
- reuse some parts of the code.
