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/HideMapCrateAction.cs

@@ -10,6 +10,7 @@
 
 namespace OpenRA.Mods.RA
 {
+	[Desc("Hides the entire map in shroud.")]
 	class HideMapCrateActionInfo : CrateActionInfo
 	{
 		public override object Create(ActorInitializer init) { return new HideMapCrateAction(init.self, this); }