Forward port of branch saas-3 up to fc9fc3e

diff --cc addons/account/account_move_line.py
Simple merge

diff --cc addons/account_anglo_saxon/invoice.py
Simple merge

diff --cc addons/mail/static/src/js/mail_followers.js
Simple merge

diff --cc addons/mail/static/src/xml/mail_followers.xml
Simple merge

diff --cc addons/point_of_sale/static/src/js/widget_base.js
Simple merge

diff --cc addons/project/project.py
Simple merge

diff --cc openerp/addons/base/ir/ir_translation.py
Simple merge