- fixed: The sector's 'hidden' UDMF property did not properly clear the corresponding flag if the value was 'false'.
- added UDMF 'waterzone' property for sectors.
Merge branch 'maint' of https://github.com/rheit/zdoom into maint
- added Player.Aircapacity property which is used as a multiplier for the level's air supply.
- added APROP_ViewHeight and APROP_AttackZOffset submission by TheFortuneTeller.
- Ability to set A_VileAttack's initial attack's damage type - by BlueShadow.