OpenRA/OpenRA — pull request #6189 by UberWaffe (2014-08-06 08:08:23+00:00)
Title: 6066 Crate Prerequisites

Closes #6066.

Also updated crate yaml for affected mods (RA and D2K).

Also adds YamlException on a GiveUnitCrateAction if it does not define any units to give.