May 09, 2012 Patch

{{Patch layout
 * source = http://store.steampowered.com/news/7934/
 * source-title = Portal 2 Update Released


 * before   = May 08, 2012 Patch
 * current  = May 09, 2012 Patch
 * after    = N/A


 * notes =

Portal 2
}}
 * Fixed glass and grating items causing maps to fail compiling in some configurations
 * Fixed Puzzle Maker UI menus sometimes dismissing themselves just after opening
 * Fixed Puzzle Maker autosaves not being deleted properly on Macs
 * Multiple localization fixes