the old debug_assert always ran and tested the expression, which slows
down release builds. wrapping them in #ifndef NDEBUG is clumsy. the new
ASSERT behaves like assert and ENSURE like the old debug_assert. Let's
change any time-critical but not-super-important ENSURE to ASSERT to
speed up release builds. (already done in bits.h and unique_range.h)
This was SVN commit r9362.
Handle most CStr8/CStrW conversions via UTF-8 instead of effectively
assuming Latin-1.
Return UTF-8 strings from Xeromyces API.
This was SVN commit r8929.
Add GL implementation limits to hwdetect.
Make the in-game manual support multiple text files.
Remove unnecessary instruction on how to close the manual window.
Make guitextobject.caption return the original value without stripping
formatting tags.
Remove unused non-VFS support from config system.
Support writing config files back to their original path.
Remove unnecessary user profile directory; use normal config directory.
This was SVN commit r8925.
