payment. Added post_msg, message displayed after payment.
[IMP] payment_transfer: added a default value (generated at create) for
post_msg, that contains bank accounts details. bank accounts linked to the
current company and used in report footer are shown.
[FIX] payment_*: make the buttons noupdate.
[IMP] payment: portal_published -> website_published + propagation
[IMP] payment: added process selection field that will be used for some
control in the website, telling w hether we want to refresh a payment
validation page or not.
bzr revid: tde@openerp.com-20140124134652-cc0nz08znnlmftw4
Thibault Delavallée