Fixed the merman spawns not working correctly...

...and limited the number of simultaneous gryphons on the easiest
difficulty.

data/campaigns/Son_Of_The_Black_Eye/scenarios/11_Clash_Of_Armies.cfg

@@ -116,6 +116,10 @@
 
     {STARTING_VILLAGES 3 11}
 
+#ifdef EASY
+    {LIMIT_CONTEMPORANEOUS_RECRUITS 3 "Gryphon Rider" 3}
+#endif
+
     [side]
         type=General
         id="Earl Lanbec'h"
@@ -312,6 +316,7 @@
 
     [event]
         name=turn 3,turn 4,turn 5,turn 6,turn 9,turn 11
+        first_time_only=no
 
         {GENERIC_UNIT 5 (Merman Fighter) 1 15}
         {GENERIC_UNIT 5 (Merman Fighter) 1 16}