[MERGE][IMP] account/account_voucher: new filters and usability minor fixes

bzr revid: rim@openerp.com-20140428101311-quxvr6d3lfa842tl

diff --cc addons/account_voucher/account_voucher.py
index 771c6e1,f6667f2..982d53e
--- 1/addons/account_voucher/account_voucher.py
--- 2/addons/account_voucher/account_voucher.py
+++ b/addons/account_voucher/account_voucher.py
@@@ -189,7 -189,7 +189,7 @@@ class account_voucher(osv.osv)
          if not ids:
              return []
          if context is None: context = {}
-         return [(r['id'], (str("%.2f" % r['amount']) or '')) for r in self.read(cr, uid, ids, ['amount'], context, load='_classic_write')]
 -        return [(r['id'], (r['number'] or '')) for r in self.read(cr, uid, ids, ['number'], context, load='_classic_write')]
++        return [(r['id'], (r['number'] or _('Voucher'))) for r in self.read(cr, uid, ids, ['number'], context, load='_classic_write')]
  
      def fields_view_get(self, cr, uid, view_id=None, view_type=False, context=None, toolbar=False, submenu=False):
          mod_obj = self.pool.get('ir.model.data')