Request Helper Release Candidate

Release candidate for version 0.3.0.

Adds a new request parsing helper class so tokens can be easily retrieved outside of the token authentication process.

This makes some significant amends to the Parser namespace, along with some tidy up to other classes so they make a little more sense.

ToDo:

• Complete testing in a production environment.
• See if any improvements can be made to the unit tests.
• Add adequate comments to new code.