Updates config file.
Updates config file.

* Adjusts the note at the top in regards to there being other configuration
  that can be done that's not listed in the file.
* Notes that the file is a Python code file.
* Removes the cache related properties.  They don't really work as
  well as they should.

daitangio/pyblosxom,willkg/douglas,willkg/douglas,daitangio/pyblosxom