fix for
issue #855: Failure to teleport rarely makes engine crash
issue #829: Drill rocket drilling dust is slightly misplaced
issue #852: Using blowtorch to dig through the wrap-around border in caves fails miserably
issue #865: gfResetHealth is not exposed to Lua
issue #755: Lua API: Add ammo type parameter for onHogAttack
fix size of PtrInt. enable tests for pas2c (all passing now)