Add set-phase-on-sync-enable.  Fails because internal buffer is always marching forward
Try to sync phase when enabling sync follower
Sync phase in more situations.
Make programatically-triggered phase syncing happen inside enginebuffer to prevent off-by-one-buffer misalignment.
Merge pull request #133 from ywwg/mastersync-sync-phase-on-enable

Mastersync sync phase on enable