Merge branch 'NetStandard' of https://github.com/vchelaru/FlatRedBall …

…into NetStandard

FRBDK/Glue/OfficialPlugins/DamageDealingPlugin/MainDamageDealingPlugin.cs

@@ -139,6 +139,7 @@ static CustomVariable GetSecondsBetweenDamage(int version)
             secondsBetweenDamage.Name = nameof(IDamageArea.SecondsBetweenDamage);
             secondsBetweenDamage.DefaultValue = 0.0;
             secondsBetweenDamage.Type = "double";
+            secondsBetweenDamage.Summary = "The number of seconds between dealing damage to the same object. 0 means every frame.";
             secondsBetweenDamage.CreatesProperty = true;
             secondsBetweenDamage.SetByDerived = true;
             secondsBetweenDamage.Category = "Damage Dealing";