Rebased. (+1 squashed commits)

Squashed commits:

[43010a0] Fixes. (+1 squashed commits)

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[94ee90e] Fixes. (+1 squashed commits)

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[ef827c7] Style cop updates. Updates to LevelUp, Cloak, and UnitUpgrade to allow multiple units within range, plus maximum extra unit limit. (+1 squashed commits)

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[2103b01] Dupe crate action updates and fixes. (+2 squashed commit)

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[0f4df4a] Added DuplicateUnitCrateAction.

[2787fa1] Clarity update. (+1 squashed commits)

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[93ddc3b] Crate updates.
+Multiple units per crate allowed.
+Allow time delay on crate actions.

OpenRA.Mods.RA/Crates/LevelUpCrateAction.cs

@@ -8,19 +8,34 @@
  */
 #endregion
 
+using System.Linq;
+
 namespace OpenRA.Mods.RA
 {
+	[Desc("Gives experience levels to the collector.")]
 	class LevelUpCrateActionInfo : CrateActionInfo
 	{
+		[Desc("Number of experience levels to give.")]
 		public readonly int Levels = 1;
 
+		[Desc("The range to search for extra collectors in.", "Extra collectors will also be granted the crate action.")]
+		public readonly WRange Range = new WRange(3);
+
+		[Desc("The maximum number of extra collectors to grant the crate action to.")]
+		public readonly int MaxExtraCollectors = 4;
+
 		public override object Create(ActorInitializer init) { return new LevelUpCrateAction(init.self, this); }
 	}
 
 	class LevelUpCrateAction : CrateAction
 	{
+		LevelUpCrateActionInfo Info;
+
 		public LevelUpCrateAction(Actor self, LevelUpCrateActionInfo info)
-			: base(self,info) {}
+			: base(self, info)
+		{
+			Info = info;
+		}
 
 		public override int GetSelectionShares(Actor collector)
 		{
@@ -37,6 +52,29 @@ namespace OpenRA.Mods.RA
 					gainsExperience.GiveLevels(((LevelUpCrateActionInfo)info).Levels);
 			});
 
+			var inRange = self.World.FindActorsInCircle(self.CenterPosition, Info.Range);
+			inRange = inRange.Where(a =>
+				(a.Owner == collector.Owner) &&
+				(a != collector) &&
+				(a.TraitOrDefault<GainsExperience>() != null) &&
+				(a.TraitOrDefault<GainsExperience>().CanGainLevel));
+			if (inRange.Any())
+			{
+				if (Info.MaxExtraCollectors > -1)
+					inRange = inRange.Take(Info.MaxExtraCollectors);
+
+				if (inRange.Any())
+					foreach (Actor actor in inRange)
+					{
+						actor.World.AddFrameEndTask(w =>
+						{
+							var gainsExperience = actor.TraitOrDefault<GainsExperience>();
+							if (gainsExperience != null)
+								gainsExperience.GiveLevels(((LevelUpCrateActionInfo)info).Levels);
+						});
+					}
+			}
+
 			base.Activate(collector);
 		}
 	}