[IMP] product: name_get matching on commercial_partner_id for suppliers

The name_get of a product will use some information (e.g. default_code) based on the supplier.
The matching of the supplier should use the commercial_partner_id in case the supplier info are on the company and the partner_id in the context belongs to the company (e.g. creates quotation with a contact of the company).
Fixes #1219
[FIX] account_analytic_analysis: invoiced field takes customer invoices only

Besides, it subtracts customer invoices with customer refund invoices
[FIX] auth_oauth: fb and google oauth providers reset on general settings apply

 - The res_config.xml file was missing in the manifest (so couldn't check the use of FB and Google OAuth from the general settings)
 - The default value for these oauth configuration were not set
[FIX] ir_attachment: restrict access to orphan attachments to employees
Merge remote-tracking branch 'odoo/7.0' into 7.0