- MSTheme: map windows system sounds
- MSTheme: fix UTF-8 issue (BString::RemoveSet() is buggy on BeOS) and NTFS path handling (check several capitalizations).
- MSTheme: force Deskbar at the bottom, disable Z-Snake
- add fallbacks for window decors to importers and decor addons
- add 1.0 sound gain from R5
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27805 a95241bf-73f2-0310-859d-f6bbb57e9c96