Start 0.6.5 development
Update XML API responses

Added more attributes to request responses, and moved the actual content closer to being valid XML.
Add RSS support

Satisfies one of the reasons this project was started.
Release v0.6.5
Merge branch 'master' into release

* master:
  Release v0.6.5
  Add RSS support
  Update XML API responses
  Start 0.6.5 development