[IMP] project_issue: email notification button for all users
[IMP] project_issue: email notification button for all users

The access/follow/actions buttons on the notification email template
are sent only to employee. For this particular business model when
want all the users to receive them, as the portal users.

laslabs/odoo,ygol/odoo,ygol/odoo,storm-computers/odoo,bplancher/odoo,microcom/odoo,microcom/odoo,dfang/odoo,Elico-Corp/odoo_OCB,stephen144/odoo,sysadminmatmoz/OCB,ygol/odoo,sysadminmatmoz/OCB,sysadminmatmoz/OCB,dfang/odoo,stephen144/odoo,stephen144/odoo,hip-odoo/odoo,microcom/odoo,ygol/odoo,laslabs/odoo,microcom/odoo,ygol/odoo,hip-odoo/odoo,dfang/odoo,Elico-Corp/odoo_OCB,dfang/odoo,laslabs/odoo,storm-computers/odoo,dfang/odoo,bplancher/odoo,sysadminmatmoz/OCB,bplancher/odoo,bplancher/odoo,microcom/odoo,microcom/odoo,storm-computers/odoo,laslabs/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,storm-computers/odoo,ygol/odoo,hip-odoo/odoo,stephen144/odoo,dfang/odoo,hip-odoo/odoo,stephen144/odoo,bplancher/odoo,sysadminmatmoz/OCB,sysadminmatmoz/OCB,laslabs/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo,stephen144/odoo,bplancher/odoo,storm-computers/odoo,laslabs/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB