Wrote first draft of v0.3 specification.
Made lists not quotes.

* In RST, any line starting with a space is a quote.
Added a section regarding Redis.
Cleaned up unicycle language.

* Someone suggested I do so.
Added protection against downloading archives.

* Before this other users could download other user's archives.
Fixed syntax error in _get_class.

* Only occurs in very particular situations.
Fixed fill error in create_gradebook.

* This resolves #381.
Fixed permission error with get_gradebook.

* This is unrelated to the internal error that was getting raised.
Merge remote-tracking branch 'origin/v0.2stable'

* There was a security fix and two bug fixes made into v0.2stable per
  UCR's needs.
* This merge also brings in a couple of outdated docs which I will
  delete with another commit.
Deleted outdated docs pulled in from v0.2stable