Corrected README.rst to pass "setup.py check -r -s"

Removed the 'beta' status: going stable

distribute.sh: use a SSH host instead of a login

Added PyPI version and license badges to the README

Corrected a typo in the change log

Small corrections according to PEP-8 and Pylint

Updated README and CHANGELOG

Corrected badges of the README for the master branch

Updated version number in distribute.sh

Travis-CI: update the master branch link