Patch notes for version 81

Fixed OpenGL/Intel startup crash

Several other crash fixes

Fixed pathfinding issue where enemies would sometimes fail to find the way

Fixed several issues where game broke when resuming in or around bossfights

Getting pushed through walls should now be much less common

Added "g_extra_players" cvar for making the game harder

Added "ui_speedrun" cvar (1 = show run timer, 2 = show run timer + level splits)

Fix for Ranger being able to shoot powershot through walls

Several minor visual fixes

Magic Missiles, Increased collision size so they are easier to hit

Thundersnow, longer cooldown and lower lifetime of frost orbs

Thundersnow, decreased wind strength slightly

Thundersnow, no longer shoots 3 frost balls in mp

Lich and Eye mini bosses can now be disarmed and affected by debuffs(magebane, shieldbreaker, talisman of decay)

Cape of the Flamewalker, now immediately applies damage when in range

Ghosts and flowers can no longer be affected by bleeding