Add random team choices, modify maplist files
Added randomized team functionality, the server-side convar is gp_random_teams
1/0, I also added a say command ".randomize" will toggle random teams to 'on'.
Anybody can perform this command right now, I should change this to a vote. Also
modified the sourcemod map files for warmup and idle configs to include the full
maplist.

Add .randomize say command to enable random teams

Fix minor formatting issues.