More stuff

Rewrite all rp_maps files to use new format. Added full support for
rp_evocity_v2d_updated. Removed support for rp_evocity_v2d. Continued
refactoring changeteam on both server and client: Now uses net messages
instead of console commands and more. Merged sv_adminhooks and
cl_essential into sh_adminhooks. Changed everything to use
Player:RP_IsAdmin() instead of Player:IsAdmin() and
Player:IsSuperAdmin() (fixes #77). Fixed localchat always being on.
Moved parts of GM:PlayerInitialSpawn into different places. Moved
ShowSpare1 into sh_menu. Completely refactored the player class system.
Moved lots of stuff out of sv_essential into sh_playerclass. Improved
utility commands. Being unarrested now clears wanted status (further
fixing #39). Moved ShowSpare2 into sv_changeteam. Fixed some police
doors not registering with RP:AddPoliceDoor(vector pos, bool hacky).
Police doors now spawn locked. Removed unneeded resources. Fixed
player's views breaking when their spectated entity is deleted
(deathcollide, parachute, etc) (fixes #76). Made more progress on #32.