[venv] Tell easy_install to install pygit2 0.17
[venv] Tell easy_install to install pygit2 0.17.3
[travis] clone the same version for libgit2 and pygit2
Add setup.py
forget to commit setup.py
fix venv.sh
Fix migration to pygit2 0.17.3
Update README.md
Merge pull request #4 from linkdd/master

fix deployment