Rcssmin

*) Fix minification of calc() calls. (Issue 1)

*) Benchmark updates

*) Lift max restrictions for CPython and Jython as well.

*) Lift max restrictions for pypy versions. Added pypy3 support.

*) Added support for pypy 2.2

*) Updated benchmarks

*) Relint with newer pylint

*) Fix locale problem with the setup script on python3.
Submitted by https://github.com/svenstaro

*) Documentation and benchmark updates

*) Added support for the following grouping -rules:
supports, document, keyframes

*) Added support for Python 3.4 and Jython 2.7

*) Added compat option to setup.py supporting the pip installer

*) Added support for pypy (1.9, 2.0)

*) Added support for jython (2.5)

*) Added support for Python 3.3