use png for about cause we use alpha for bg shadow [not possible in svg]

src/dialogs.py

@@ -386,10 +386,7 @@ class About_dialog:
 		authors = ['Yann Le Boulanger <asterix@lagaule.org>', 'Vincent Hanquez <tab@snarc.org>', 'Nikos Kouremenos <kourem@gmail.com>', 'Alex Podaras <bigpod@gmail.com>']
 		dlg.set_authors(authors)
 
-		try:
-			pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(gajim.DATA_DIR, 'pixmaps/gajim.svg'))			
-		except gobject.GError: # svg loader not available, fallback to png [scales worse]
-			pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(gajim.DATA_DIR, 'pixmaps/gajim.png'))
+		pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(gajim.DATA_DIR, 'pixmaps/gajim.png'))			
 
 		dlg.set_logo(pixbuf)
 		dlg.set_translator_credits(_('translator_credits'))