Stop support for changing scores via /scoreboard

- Also fixes firing multiple messages in elimination when /ro editscore
  changes the score for a single player.
Add 'n teams remaining' msg to elimination

And fix message styling issue when team eliminated.
Fix sb teams not reset on elimination match stop
Test elimimination lives reset on match stop
Add temp fix to disabling main scoreboard error
Odd tidying

* Small python changes.
* Fix player tab complete returning 'offline_members' instead of
  'offline_players'.
* Fix setscoreboard func not returning when single option does not
  exist.
Add setup.py to handle building
1.1.1