Proven by the Sword: tell Deoran to go to Westin if the citadel is secured

(fixes #7360) Can't apply it to 1.2 because of string freeze.

changelog

@@ -5,6 +5,9 @@ Version 1.3-svn:
    * Heir to the Throne
      * removed Mountain Pass and Valley of Statues from the repository
      * added underpinnings of a unlockable, optional, bonus scenario
+   * The South Guard
+     * Proven by the Sword: tell Deoran to go to Westin if the citadel is
+      secured (fixes #7360)
  * multiplayer maps:
    * new multiplayer maps: The Manzivan Traps
  * units:

data/campaigns/The_South_Guard/scenarios/2.Proven_By_The_Sword.cfg

@@ -233,6 +233,44 @@
 	[/filter]
 
 	{VARIABLE citadel_secured "yes"}
+	# check if it is Deoran. If not, tell him to go to Westin
+	[if]
+		[have_unit]
+			x,y=22,16
+			[not]
+				description=Deoran
+			[/not]
+		[/have_unit]
+		[then]
+			[message]
+				speaker=unit
+				message= _ "At last the citadel is secured."
+			[/message]
+			[message]
+				speaker=Sir Gerrick
+				message= _ "Now Deoran, take you post of command at the Citadel of Westin."
+			[/message]
+			[objectives]
+				side=1
+					[objective]
+						description= _ "Bring Deoran to the Citadel of Westin."
+						condition=win
+					[/objective]
+					[objective]
+						description= _ "Death of Deoran"
+						condition=lose
+					[/objective]
+					[objective]
+						description= _ "Death of Sir Gerrick"
+						condition=lose
+					[/objective]
+					[objective]
+						description= _ "Time runs out"
+						condition=lose
+					[/objective]
+			[/objectives]
+		[/then]
+	[/if]
 [/event]
 
 # Deoran arrives at the citadel