Prevent pod umbilical port toggle outside VAB (WIP 2)

For #63.

Deliberate use of misspelt parameter due to documented KSP bug.

Author: sumghai

GameData/SDHI/Service Module System/Parts/MM_configs/SDHI_SMS_MMPatch_Mk1-2Pod_umbilical.cfg

@@ -20,9 +20,9 @@
 		endEventGUIName = Remove Umbilical Port
 		actionGUIName = Toggle Umbilical Port
 		actionAvailable = true
-		eventAvailableEditor = true
-		eventAvailableFlight = false
-		eventAvailableEVA = false
+		eventAvialableEditor = true		// Documented KSP bug: parameters were misspelt using Avialable rather than Available
+		eventAvialableFlight = false		// Using incorrect spelling to (hopefully) jury-rig the feature to work regardless
+		eventAvialableEVA = false
 		evaDistance = 5
 	}
-}
+}