New unit: Drake Beak, advancement from Petit

data/units/Drake_Beak.cfg

@@ -0,0 +1,47 @@
+[unit]
+name=Drake Beak
+race=drake
+image=drake-beak.png
+image_defensive=drake-beak-defend.png
+hitpoints=37
+movement_type=drakefly
+movement=8
+experience=500
+level=2
+alignment=neutral
+advanceto=null
+cost=24
+usage=scout
+unit_description=""
+get_hit_sound=groan.wav
+
+	# this drake,a albeit larger than Petit, is smaller than most,
+	# more agile, and he doesn't need to land before fighting
+	[defense]
+	deep water=50
+	shallow water=50
+	swamp water=50
+	grassland=50
+	sand=50
+	forest=50
+	hills=50
+	mountains=50
+	village=50
+	castle=50
+	tundra=50
+	cave=80
+	[/defense]
+
+	[attack]
+	name=beak
+	type=impact
+	range=short
+	damage=8
+	number=3
+		[frame]
+		begin=-300
+		end=-50
+		image=drake-beak-attack.png
+		[/frame]
+	[/attack]
+[/unit]

data/units/Drake_Petit.cfg

@@ -9,8 +9,7 @@ movement=7
 experience=30
 level=1
 alignment=neutral
-advanceto=null
-#advanceto=Drake Beak
+advanceto=Drake Beak
 cost=15
 usage=scout
 unit_description=""