Enable debug line for file sync
Fix handling of errors when saving items to data store asynchronously
Fix innocuous "itemProgress is not defined" error
Rename Zotero.ID.getKey() to Zotero.Utilites.generateObjectKey()

(To make it accessible to the connector)
Rename Zotero.ID.getKey() to Zotero.Utilites.generateObjectKey()

(To make it accessible to the connector)
Return multiple items from Zotero.Utilities.itemToServerJSON()
Use API v2 in connector, part 1
Call done handler after saving

Broken by dde09c54a201a4298815135cdd0eb76903992234
Merge branch '4.0'

Conflicts:
	chrome/content/zotero/xpcom/schema.js