Basic Implementation of all REST API commands.

[rpcope1]

This library is currently not fully featured. A basic first release should have all of the REST API commands implemented, with basic validation on parameters.

[rpcope1]

This should include adding docstrings for all methods.

[rpcope1]

1854cd9 marks the completion of docstrings for all public methods, and all Confluence RESTful API resources implemented as methods.