Allow package type to be deactivated

Over time some type of package can be no more used.

assigned to @ced

added stock type::feature + 1 deleted label

added 1 deleted label and removed 1 deleted label

New review376931002 at https://codereview.tryton.org/376931002/#ps364921002

New changeset fe1cad8f34f1 by Cédric Krier in branch 'default':
Allow package type to be deactivated
https://hg.tryton.org/modules/stock_package/rev/fe1cad8f34f1

added 1 deleted label and removed 1 deleted label

closed

New changeset 029c0e84876f by Cédric Krier in branch 'default':
Allow package type to be deactivated
https://hg.tryton.org/tryton-env/rev/029c0e84876f