wip
add buildenv to interactively build program

- added s3cmd to upload archives
- to upload archives, you need to have the following env variables setup in
  the host
  - AWS_ACCESS_KEY
  - AWS_SECRET_KEY
  - AUTOPARTS_HOST
  - AUTOPARTS_BUCKET
setup env before running the shell
add python2
add python3
add setuptools
add pip
add virtualenv
Merge branch 'php_refactoring' into pip
Merge remote-tracking branch 'upstream/python' into pip

Conflicts:
	lib/autoparts/packages/pip.rb
Merge pull request #68 from codio/pip

Pip python etc