Prevent pod umbilical port toggle outside VAB (final)

For #63.

Fixes have been confirmed to work in KSP 1.0.5.

Author: sumghai

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

@@ -19,7 +19,7 @@
 		startEventGUIName = Install Umbilical Port
 		endEventGUIName = Remove Umbilical Port
 		actionGUIName = Toggle Umbilical Port
-		actionAvailable = true
+		actionAvailable = false			// Prevents umbilical port retrofit from being toggled via Action Groups
 		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