Some messages should be sent from personal accounts
Change the place where configuration settings are stored.

Keeping them in company model was a bit hackish. Odoo has a special
config model just for that purpose.
Hierarchical organizations
Removed usage of Werkzeug in email_confirmation module.

This is because of outdated version of Werkzeug on CI server.
Added dependency on organization hierarchy module to FPBŻ configuration.
Fix for problem with organization hierarchy