Update Changelog.txt.
Fix compilation after 0a8bb4ffe70a3b937bc5035e96680d6bb853b2a6.
installer: get rid of the revision for stable builds completely.
Update files for 1.7.2
Update SoundTouch to 1.8.0.
Update VirtualDub to v1.10.5-test2.
Use `void` instead of `VOID`.