[FIX] website editor: backspace does not merge like delete
[FIX] website editor: backspace does not merge like delete

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