Moves Attack, Armament, Move, Air traits and activities as well as anything required by them to Mods.Common.

Extracts Exit from Production into its own trait.

OpenRA.Mods.RA/Scripting/Properties/MobileProperties.cs

@@ -8,6 +8,8 @@
  */
 #endregion
 
+using OpenRA.Mods.Common.Activities;
+using OpenRA.Mods.Common.Traits;
 using OpenRA.Mods.RA.Activities;
 using OpenRA.Mods.RA.Traits;
 using OpenRA.Scripting;