Log Message:
Update to version 0.7.3

Changes:

- allow binary element comparison (useful to compare UIDs)
- rename bSaveDefault in bKeepIntact
- don't save empty EbmlMasters by default
- Use malloc() and free() instead of new[] and delete[] where the lib might
  deal with pointers that have been allocated by the app, or where the app
  has allocated the memory. Reason: new[]ed memory cannot be realloc()ed.
- Improved the dependency calculation to be more portable (makedepend doesn't
  exist everywhere, and it doesn't necessarily use the compiler we want).
- Added a "RemoveAll" function.
- better code to handle all VTS VOBs (not yet there)