* Updated to ZDoom 4064:
- Fixed CF_DOUBLEFIRINGSPEED is in player->cheats, not player->WeaponState.
- Added WRF_DISABLESWITCH flag for A_WeaponReady to indicate that any attempts to switch the weapon should be discarded.
- Moved MF4_BOSSSPAWNED flag copying from A_PainShootSkull to AActor::CopyFriendliness().
- Allow terrain definitions to work with overrides and non-flats.

git-svn-id: http://mancubus.net/svn/hosted/gzdoom/trunk@1515 b0f79afe-0144-0410-b225-9a4edf0717df