[epiphany] (13 commits) Non-fast-forward update to branch wip/sync

[Gabriel Ivașcu <gabrielivascu src gnome org>]

The branch 'wip/sync' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  56c7c19... synchronizable: Implement _from_bso() method
  d493994... sync: Add EphySynchronizableManager interface
  6593fd3... sync: Use a different schema GSettings schema
  c6cfa3e... bookmark: Remove unused default interface vtable
  145438b... bookmarks-manager: Implement EphySynchronizableManager
  f2b1ab3... bookmark: Fix criticals caused by non-existent tags
  d7726eb... bookmarks-manager: Search by id when removing bookmarks
  57ae768... bookmark-properties-grid: Don't manually check for changes,
  2ca2e75... sync-service: Add functionality to register/unregister sync

Commits added to the branch:

  b2b8d78... synchronizable: Implement _from_bso() method
  f667712... sync: Add EphySynchronizableManager interface
  253b881... sync: Use a different schema GSettings schema
  bb45788... bookmark: Remove unused default interface vtable
  382df5a... bookmarks-manager: Implement EphySynchronizableManager
  c47a216... bookmark: Fix criticals caused by non-existent tags
  73ee545... bookmarks-manager: Search by id when removing bookmarks
  83679fd... bookmark-properties-grid: Don't manually check for changes,
  3c5614a... sync-service: Add functionality to register/unregister sync
  4dfbb40... synchronizable: Pass the key bundle as a parameter to _to_b
  7c92614... sync-service: Add new sync functions
  5da52e9... sync-service: Delete old sync functions
  b8c2b3f... sync: Use GSettings to decide if an initial sync is require