[FIX] res.config: ensure there is a context before checking its content
[FIX] res.config: ensure there is a context before checking its content

gisce/openobject-server,splbio/openobject-server,ovnicraft/openerp-server,gisce/openobject-server,splbio/openobject-server,MarkusTeufelberger/openobject-server,ovnicraft/openerp-server,gisce/openobject-server,MarkusTeufelberger/openobject-server,vnc-biz/openerp-server,splbio/openobject-server,vnc-biz/openerp-server,MarkusTeufelberger/openobject-server