Ported readme from Ruby.
Merge github.com:Spooner/stampr-api-python

Conflicts:
	README.md
Altered readme.
Port to Python (from Ruby) with all tests passing.
Ensured _api is called correctly.
Added documentation and build tools.
Documentation improvements.
Altered task setup.
Corrected some docs.
ping server (to check credentials) during authenticate()
Exclude tests from release.
Ensure sensible error message when using network without having authenticated.
Made things a bit more robust (check for empty response in indexing).
Corrected data in mailing.
Added Travis CI support.
Corrected dependencies for Travis.