[ardour-dev] latest CVS commit

[Paul Davis]

   * new layer model: "Most recently added regions are higher"
       With this model, no edits made to a playlist will cause
       relayering to take place. Added following working reports
       from Ron Parker.
 
   * changing layer models does not recompute the layering of any
     playlists
 
   * cleanup fixes for multi-snapshot situations
 
   * libardour: 0.877.0
     ardour/gtk:  0.578.0
 
The CVS snapshot has been manually updated to reflect these changes.