Merge pull request #7 from Wolfenswan/dev-ambushWP

new: ws_fnc_taskAmbush
added task_ambush to description.ext
added date to getPosInArea
small error fixes in fnc_addWaypoint && fnc_getPos
typo fix
more bugfixes
Merge branch 'master' of https://github.com/Wolfenswan/ws_fnc into dev