[IMP]disable attachments on list view.
[REM]override on_record_moved removed.not useable
[MERGE]Trunk.
[MERGE]Trunk
[IMP] show button bottom of card.
Merge with latest code.
[MERGE]Trunk.
[MERGE]Trunk.
[MERGE]Trunk.
[MERGE] [FIX] mail: fixed group button position that was too much dependent of the group description length
[IMP] project: removed unnecessary code in project to try to be able to move kanban records in a folded column (was not working + generic solution coming)