Allow installing via pip?

[daboross]

It would be awesome to be able to install this package as a command line program into an existing virtualenv. I think that would still be possible without publishing to pypi, but if you'd be willing to do that as well that'd be awesome.

[daboross]

I'm willing to try and submit a PR to make instillation as a python package possible, if that would indeed be good for the project.

[tedivm]

If you make the pull request I'll accept it and push things to PIP. I honestly intended to do so, but since this is just a hobby project I haven't had the time.

[rsnitsch]

I have started implementing this on my fork.

I also have ideas for lots of other improvements across the whole codebase, including code formatting with yapf (the current code formatting is extremely inconsistent) etc. @tedivm Would you be willing to accept these big changes (affecting the whole code base) or don't you like such big pull requests? It's your project, after all.