WebServer: switch to html5 (WIP), use html5shiv
Revert "actually disable C4995 and C4996 for udf.cpp"

This reverts commit 03ca3eff5fccbfe6bfc1583789d4fe91af8b1900.
update TreePropSheet from TortoiseSVN
fix warning
update ffmpeg (n0.8-17820-gd9226b3)
Work around a libavresample crash