Revert "actually disable C4995 and C4996 for udf.cpp"

This reverts commit 03ca3eff5fccbfe6bfc1583789d4fe91af8b1900.
update TreePropSheet from TortoiseSVN
fix warning
check return value
update ffmpeg (n0.8-18010-gbbe56bc)
Work around a libavresample crash
Updated Czech translation
update Changelog.txt
Make 'Auto fit factor:' label bigger and resize/move the 'Reset / Export / Export keys' buttons.
remove a few do while (0) loops