[FIX] safe_eval() : Added support of len()
[FIX] safe_eval() : Added support of len()
vnc-biz/openerp-server,splbio/openobject-server,ovnicraft/openerp-server,MarkusTeufelberger/openobject-server,vnc-biz/openerp-server,ovnicraft/openerp-server,splbio/openobject-server,MarkusTeufelberger/openobject-server,MarkusTeufelberger/openobject-server,splbio/openobject-server,gisce/openobject-server,gisce/openobject-server,gisce/openobject-server