Added some documentation for a planned refactor in the AE's, just so I don't forget.
Removed the methods for getting the physics proxy type and replaced them with something that will get the Mezzanine proxy type.  This new method is for all WorldProxys.  Updated Rigid Proxies and Audio system proxies.
Script binding updates.
Minor tweaks to code style, documentation, and fixes.
Completed what all should be necessary for ghost proxies.
Merge branch 'master' of https://github.com/BlackToppStudios/Mezzanine