gitignore: mailpile.egg-info/ build/ dist/ mailpile-tmp.py
use setuptools entry_points to create mp script
add requirements.txt
update README.md
Merge branch 'packaging' of https://github.com/steinn/Mailpile into pulling/steinn

Conflicts:
	README.md
Reverting instructions to not install Mailpile to the OS
Creating a global mp command may be a bit much
Contributors