[ent] Cartesian dualism may be an oversimplification of reality, but it makes sense in programming.
[hacc] Tolerate unhaccable types during foreach_address and foreach_pointer
[ent] Fix Controllable not being haccable
[ent] When iterating over bits, start with 1, not 0
[ent] Properly initialize biped stats
[hacc] Add array() flag to establish that a type should be preferentially treated as an array
[ent phys] Remove Ambulator and separate fixdefs from bodydefs