April 23, 2013 Patch

{{Patch layout
 * source = http://dev.dota2.com/showthread.php?t=83733
 * source2 = http://dev.dota2.com/showthread.php?t=83749
 * source-title = Main Client Updated - 4/23 5:21PM PST
 * source2-title = Main Client Updated - 4/23 8:37PM PST


 * before = April 22, 2013 Patch
 * after =


 * notes =
 * Added server region and support for the upcoming Perfect World beta.
 * Fixed suggest invite to party message corruption.
 * Fixed loadout preview not working with items (for reals)
 * Fixed an NPC casting issue in the tutorial
 * Fixed positioning in the portrait editor.
 * Fixed Quickload breaking updating existing submissions.

Update 2
}}
 * Additional changes for the upcoming Perfect World beta.
 * Fixed and  not appearing in the loadout view.