request full roster if we have no contacts in our current database, in case we cleaned database but not roster_version option. Fixes #5729

[Dicson] differenciate what we get from geoclue and when we get from jabber server. It's different. Fixes #5724

[Jingle] Fix misplaced tags in error stanzas ; added error type support (for types other than cancel)

Fixes #5668, #5651