hanged the vertical growth in the title screen.

Implementing some ideas suggested by Eleazar in the forum [1].

[1] http://www.wesnoth.org/forum/viewtopic.php?t=31765

data/gui/default/window/title_screen.cfg

@@ -51,13 +51,12 @@
 	[/column]
 #enddef
 
-#define _GUI_V_SPACER
+#define _GUI_V_SPACER HEIGHT
 	[column]
 
 		[spacer]
-			# NOTE the engine doesn't recalculate the height upon scaling.
 			definition = "default"
-			height = "((22 * screen_height) / 1024)"
+			height = {HEIGHT}
 		[/spacer]
 
 	[/column]
@@ -252,7 +251,7 @@
 
 			[row]
 
-				{_GUI_V_SPACER}
+				{_GUI_V_SPACER 0}
 
 			[/row]
 
@@ -289,7 +288,21 @@
 							[layer]
 
 								[row]
-									grow_factor = 1
+									grow_factor = 4
+
+									{GUI_FILLER}
+
+									{GUI_FILLER}
+
+									{GUI_FILLER}
+
+									{_GUI_V_SPACER 50}
+
+									{GUI_FILLER}
+
+								[/row]
+
+								[row]
 
 									{_GUI_H_SPACER 17 1}
 
@@ -312,11 +325,13 @@
 								[/row]
 
 								[row]
+									grow_factor = 1
 
 									{GUI_FILLER}
 
 									[column]
 										horizontal_alignment = "left"
+										vertical_alignment = "bottom"
 
 										[label]
 											id = "revision_number"
@@ -327,7 +342,7 @@
 
 									{GUI_FILLER}
 
-									{_GUI_V_SPACER}
+									{_GUI_V_SPACER 22}
 
 									{GUI_FILLER}