add python/pavement.py for building python distribution

note that ./pavement.py and python/pavement.py are two different paver
file; ./pavement.py is for building the entire project.
python/pavement.py is only to build python part.
add paver tasks to create environment
looks like generated paver-minilib.zip are not identical
in the process of automate build & deploy

paver for building and releasable archive (said binary)
fabric for creating environment to deploy
deployment is automated including stop & start
Merge pull request #8 from yattom/automate_deploy

Automate deploy