Install through pip and setup.py and protobuf

Installing OpenHTF on Fedora Linux using pip gives protobuf error when running examples which involve the webserver. When having the correct dependencies installed and manually copying and running the setup.py (with the build flag) from OpenHTF git repo it works.

Suggest to include the compiled protobuf files in the pip package or make pip generate them on install or include the setup.py file in the pip package so you can run it manually after install. Now the full potential of pip isn't used.

If you don't have this issue, the documentation is not clear enough on how to install OpenHTF through pip.

Great project! Kind regards, Jeroen