[FIX] website_crm_score: remove default value for user_id, sql replace False by null value.
[FIX] website_crm_score: remove default value for user_id, sql replace False by null value.

hip-odoo/odoo,microcom/odoo,alhashash/odoo,dfang/odoo,bplancher/odoo,syci/OCB,sysadminmatmoz/OCB,dfang/odoo,optima-ict/odoo,sysadminmatmoz/OCB,odoousers2014/odoo,sysadminmatmoz/OCB,bplancher/odoo,dfang/odoo,laslabs/odoo,laslabs/odoo,addition-it-solutions/project-all,Elico-Corp/odoo_OCB,mkieszek/odoo,mkieszek/odoo,storm-computers/odoo,storm-computers/odoo,hip-odoo/odoo,Grirrane/odoo,microcom/odoo,hip-odoo/odoo,stephen144/odoo,deKupini/erp,Elico-Corp/odoo_OCB,alhashash/odoo,addition-it-solutions/project-all,microcom/odoo,odoousers2014/odoo,syci/OCB,addition-it-solutions/project-all,cdrooom/odoo,stephen144/odoo,optima-ict/odoo,optima-ict/odoo,syci/OCB,sysadminmatmoz/OCB,sysadminmatmoz/OCB,Grirrane/odoo,stephen144/odoo,bplancher/odoo,storm-computers/odoo,addition-it-solutions/project-all,dfang/odoo,microcom/odoo,Grirrane/odoo,bplancher/odoo,Elico-Corp/odoo_OCB,storm-computers/odoo,alhashash/odoo,odoousers2014/odoo,optima-ict/odoo,ygol/odoo,ygol/odoo,cdrooom/odoo,deKupini/erp,laslabs/odoo,cdrooom/odoo,laslabs/odoo,optima-ict/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,Grirrane/odoo,tvtsoft/odoo8,ygol/odoo,hip-odoo/odoo,odoousers2014/odoo,hip-odoo/odoo,stephen144/odoo,alhashash/odoo,laslabs/odoo,syci/OCB,stephen144/odoo,deKupini/erp,mkieszek/odoo,bplancher/odoo,cdrooom/odoo,odoousers2014/odoo,ygol/odoo,tvtsoft/odoo8,addition-it-solutions/project-all,tvtsoft/odoo8,Grirrane/odoo,dfang/odoo,alhashash/odoo,Grirrane/odoo,laslabs/odoo,sysadminmatmoz/OCB,microcom/odoo,deKupini/erp,mkieszek/odoo,storm-computers/odoo,sysadminmatmoz/OCB,tvtsoft/odoo8,optima-ict/odoo,syci/OCB,deKupini/erp,mkieszek/odoo,addition-it-solutions/project-all,alhashash/odoo,ygol/odoo,dfang/odoo,syci/OCB,odoousers2014/odoo,tvtsoft/odoo8,Elico-Corp/odoo_OCB,microcom/odoo,ygol/odoo,Elico-Corp/odoo_OCB,ygol/odoo,stephen144/odoo,bplancher/odoo,hip-odoo/odoo,mkieszek/odoo,tvtsoft/odoo8