BSD license.
Add setup.py and requirements files.
Source distribution manifest.
Coverage config file.
Add contributor instructions.
Add list of authors.
Ignore local virtualenv.
Install protobuf-compiler for Vumi.
Rename requirements.pip to requirements.txt.
Add trial temp folder to .gitignore and add new-line to end of file.
Fix description.
Merge branch 'feature/issue-1-add-setup-py' into develop