[FIX] many2one: return (id,name) instead of only id also for osv_memory
[FIX] many2one: return (id,name) instead of only id also for osv_memory

By doing this small change we save clients the trouble of explicitly having to call
name_get() for each m2o field in osv_memory objects, which they cannot trivially batch
and represents a large dealy for wizards with possibly large numbers of child o2m records.
An example is the linked bug, where partial picking of several hundred move lines would
lead to as many separate name_get RPC calls, causing a noticeable delay.
gisce/openobject-server,vnc-biz/openerp-server,splbio/openobject-server,splbio/openobject-server,ovnicraft/openerp-server,MarkusTeufelberger/openobject-server,ovnicraft/openerp-server,splbio/openobject-server,gisce/openobject-server,MarkusTeufelberger/openobject-server,MarkusTeufelberger/openobject-server,vnc-biz/openerp-server,gisce/openobject-server