Fixed error when using controllers in editor

Also added player creation to script (offline) but it still needs more
work.
Moved single-player creation to scripts (offline)
Moved 2-player creation to script (offline)
Divided screen space between cameras

Removed player UI placeholder objects
3 and 4 players should be created from script now
Added 'views' programmatically
Offline mode now uses the map "level_full"

Added a level setup script for configuring maps based on the game mode
type, when they are loaded
netRespawn is now usable by both game modes
Added minimap and pause back to offline

Removed unused maps from build/config
Removed attempt to disable camera that wasn't added

And put the empty 4th cam in bottom-right window.  Which colour gets
which window seems arbitrary.
Merge pull request #244 from osse101/localMakeover

Scripified offline mode