Add pyenv-pip-rehash
Add virtualenv support
Merge branch 'feature/virtualenv' into develop

* feature/virtualenv:
  Add virtualenv support
  Add pyenv-pip-rehash
Add customization to README
Merge branch 'release/0.0.3'

* release/0.0.3:
  Add customization to README
  Add virtualenv support
  Add pyenv-pip-rehash
Merge tag '0.0.3' into develop

Setup virtualenv using puppet

* tag '0.0.3':
  Add customization to README