[IMP] Clean up code (PEP8 compliant and so on)
[IMP] Open user tasks kanban view with timeboxes by default
[IMP] On the user kanban view, do not show terminated tasks (only tasks with a stage sequence number inferior to 20, 'Done' stage)
[IMP] On the user kanban view, show all timeboxes unfolded (empty or not)
[IMP] Remove the 'icon' field from 'project.gtd.timebox'
[IMP] Module description updated (__openerp__.py)
[FIX] XML data records are no longer overwritten when updating the module + Add sequence numbers for timebox records
[FIX] Wizard view to planify a timebox, filter open tasks on their stage instead of the state (the state does not exist anymore)
[IMP] New menu 'Tasks (GTD)' to consult all tasks (of all users) in a GTD mode with the kanban view