Changes

=== sugar-datastore ===

=== sugar-datastore ===

* The datastore has been rewritten, to simplify and improve maintainability. As a first step the API was not changed at all (other than removing removable devices support), so that the new implementation was swapped in without changes to activities and Sugar. (tomeu)

* The datastore has been rewritten, to simplify and improve maintainability. As a first step the API was not changed at all (other than removing removable devices support), so that the new implementation was swapped in without changes to activities and Sugar

* Drop for now the management of removable devices inside the DS. Removable devices support in Sugar should happen without intervention from the DS. (tomeu)

* Drop for now the management of removable devices inside the DS. Removable devices support in Sugar should happen without intervention from the DS

* #8155 The datastore should hard link identical files, to handle repeated downloads of the same content without filling up NAND. (tomeu)

* #8155 The datastore should hard link identical files, to handle repeated downloads of the same content without filling up NAND

* Support arbitrary metadata properties that activities wish to add #4662. (tomeu)

* Support arbitrary metadata properties that activities wish to add #4662

* Degrade gracefully if a database gets corrupted- Basic functionality should only depend on the filesystem being available. Any other data structures (full text index) should be rebuildable from the filesystem. (tomeu) #6269  

* Degrade gracefully if a database gets corrupted- Basic functionality should only depend on the filesystem being available. Any other data structures (full text index) should be rebuildable from the filesystem #6269

=== sugar-presence-service ===

=== sugar-presence-service ===