New convoy mission.
Removed "C_man_1_1_F" from random soldier spawn models, because it is used for the gun shops.
Added empty line on the end of the new files.
Fixed that convoy sometimes didn't stick together.
Fixed missing comma.
Design change: Convoy vehicles and alive soldiers now remain on the map when the mission is over.
Fixed stupid mistake.
Refactored vehicle and soldier creation in Convoy mission.
Merge pull request #12 from Sanjo/404convoy

New convoy mission thanks to Sanjo