Adding support for less API calls for more than 2 users, support for over 100 users without getting the
'mention_name' key error.
Merge pull request #18 from quixeybrian/all_users_one_call

Adding support for less API calls for more than 2 users, support for ove...
Style/formatting for get_all_users, docs, cleanup.

Good lord parts of this codebase look like someone just cranked them
out in a crazy, caffeine-filled fit of brilliance.  Comments? No.
Clever optimizations? Yes. Fixing those up bit by bit, so everyone
(including me) doesn't need an afternoon to know what's going on.
Updates docs.
starti -> start_index cleanup
Makes sure the room list is updated on startup (seems sane.)
Adding support for better documenting the plugins (and some pep8 main.py changes to make this more pep8-ty)