Fix for issue #492 (#496)

Murrine engine update causes misalignment of icon text and shadow. Fix by @makitso

Author: Alexey Donoga

gtk-2.0/gtkrc

@@ -528,7 +528,7 @@ style "xfdesktop-icon-view" {
 	fg[ACTIVE] = @selected_fg_color
 
 	engine "murrine" {
-		textstyle = 5
+		textstyle = 0
 		text_shade = 0.05
 	}
 }