Fix spelling
Sort player list alphabetically
Fix broken chan op command for default channel
Add assistance game mode
Use teamplay as a separate game, not option

This has a few advantages, eg:
- Makes player commands simpler - all team games will use 'player add
  name team', and non-team games will use 'player add name'.'
- No need for lots if 'if option['teamplay'']' handling.
- Can add differences between the team and non-team version of games,
  eg. in the option messages.

This patch breaks results tests.
Update score methods

- No need to separate player and team scores now that team games are in
  separate classes.
Update displaying of game list
Move channel set and op commands to game class

This should make the interface clearer - now all /ro chan commands
are dealing with other channels, and all other commands are sent to
your own channel.
Change default game mode to elimination
0.1.3
Update build from source instructions