[FIX] claim_from_delivery: fixed error in delivery view

bzr revid: qdp-launchpad@openerp.com-20140509092750-p9o1v530tmdwsqz5

addons/claim_from_delivery/claim_delivery_view.xml

@@ -16,7 +16,7 @@
             <field name="arch" type="xml">
                 <xpath expr="/form/sheet/h1" position="before">
                     <div class="oe_right oe_button_box">
-                        <button class="oe_inline oe_stat_button" type="action" attrs="{'invisible': [('picking_type_id.code', '!=', 'outgoing')]}" 
+                        <button class="oe_inline oe_stat_button" type="action" attrs="{'invisible': [('picking_type_code', '!=', 'outgoing')]}" 
                                 name="%(action_claim_from_delivery)d" icon="fa-comments" >
                                 <field string="Claims" name="claim_count_out" widget="statinfo"/>
                         </button>