Refs #31, refs #43 - Refactored demo, preparing refactor of online demo.
Refs #44 - Added support for URL-encoded lists.
Refs #23, refs #25 - More examples in demo ; using Python requests to write some doctests.
Frozen versions of 'requests' and 'six' in development environment.
Refs #31 - Online demo API moving to http://diecutter.alwaysdata.net/api
Refs #23, refs #25 - Using webtest's StopableWSGIServer to run doctests with test server.
Fixed /sphinx-docs prefix in demo HTML client for sphinx docs templates.
Merge pull request #45 from novagile/31-online-demo-client

Online demo client.
Closes #44