new ws_fnc_taskLand:
Prompts a Helicopter to land a certain location. It will ignore enemy fire as best as possible.
If it has units in cargo it'll wait until all are out, if it is empty,
it'll wait for the designated time or until all cargo seats are filled.

Fixes/Misc:
Added private declaration to ws_fnc_getEPos
Fixed title in ws_fnc_taskAmbush