[tryton-dev] project_plan: Make leveling_delay and back_leveling_delay required (issue 838002)

[cedric . krier]

http://codereview.tryton.org/838002/diff/1/work.py
File work.py (right):

http://codereview.tryton.org/838002/diff/1/work.py#newcode82
work.py:82: table.not_null_action('leveling_delay', action='add')
Not needed.

http://codereview.tryton.org/838002/