Portal 2 Update

An update has been released for Portal 2 game and Authoring Tools

• Fixed custom maps with no lights disabling lighting for the rest of the play session
• Fixed Model Viewer and Face Poser not opening
• Fixed demo playback for workshop maps
• Fixed some text corruption related to UTF-8 conversion in some instances on Linux
• Moved the 32-bit Linux binaries into linux32
• Misc. rendering and other optimizations
• Removed the 100MB workshop level file size limit
• Added a +bench_demo [name] command line parameter which will run a demo, and quit after it is finished.
• Added a -bench_settings [name] command line parameter to load a cfg/video_bench_{name}.txt file containing settings to load. There are a set of defaults provided, very_high_4k, very_high, high, medium and low.