[IMP] ir.config.parameters: support group-based access control
[IMP] l10n_pl: refactoring of Polish chart of account and taxes
[IMP] Put produce_delay and track_production on product_template
Merge pull request #793 from odoo-dev/master-wmsmrpdbchange-jco

[IMP] Put produce_delay and track_production on product_template
[ADD]added feature of group by partner in the invoicing popup of contract(like in deliveries to invoice).