Changes:- Added Big Picture mode which is optimized for using Steam fullscreen with a Gamepad on HDTVs- Games managed by the new content system can select alternate installation locations other than the Steam folder (Windows)- Fixed the in-game overlay not recognizing correctly which game is running sometimes when running a non-Steam shortcut- Fixed some potential GDI handle leaks in the Steam client (Windows)- Fixed Steam Cloud occasionally not syncing files it should- Fixed a bug where entering a password-protected content beta without a password would act like it succeeded even though it hand’t- Improved TGA validation in image loading code- Improved steam:// URL validation in some cases- Fixed a new in-game overlay crash in very specific scenarios on Windows 8 with legacy DX9 games- Fixed problems uppercasing some characters (e.g. Greek terminal sigma)- Fixed error retrieving third party cd keys when launching games on OS X (OSX)- Fix the in-game overlay to correctly inject when a launcher calls ShellExecute with an empty string for the verb (Windows, fixes SWTOR)- Improvements to the change email wizard