title: OpenERP customizing Journal Voucher view
body: <p>I'm trying to do a simple customization that is not working for some odd reason:</p>
  
  <p><strong>init</strong>.py: </p>
  
  <pre><code>import account_voucher_hash
  </code></pre>
  
  <p><strong>openerp</strong>.py</p>
  
  <pre><code>{
  "name" : "Hash Voucher",
  "version" : "1.1",
  "depends" : [
                'base',
                'account_voucher',
              ],
  "author" : "me",
  "description": """The Module customizes Vouchers""",
  
  'website': 'http://abc.com',
  'init_xml': [],
  'update_xml': [
      'account_voucher_view_hash.xml',
  ],
  'demo_xml': [],
  'installable': True,
  'active': False,
  }
  </code></pre>
  
  <p><strong>account_voucher_hash.py</strong></p>
  
  <pre><code>from osv import fields, osv
  import netsvc
  
  class account_voucher_hash(osv.osv):
  _name = 'account.voucher'
  _inherit = 'account.voucher'
  _columns={
            'test1': fields.integer('Test 1'),
            'create_uid': fields.many2one('res.users', 'Created By'),
            'creator_name': fields.related("create_uid", "name", type="char", string="Creator Name"),
            'write_uid': fields.many2one('res.users', 'Modified By'),
            'write_name': fields.related("write_uid", "name", type="char", string="Modifier Name"),
            }
  account_voucher_hash()  
  </code></pre>
  
  <p><strong>account_voucher_view_hash.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;openerp&gt;
   &lt;data&gt;
  
      &lt;record id="view_voucher_form" model="ir.ui.view"&gt;
          &lt;field name="name"&gt;account_voucher_hash_form&lt;/field&gt;
          &lt;field name="model"&gt;account.voucher&lt;/field&gt;
          &lt;field name="type"&gt;form&lt;/field&gt;
          &lt;field name="priority" eval="15"/&gt;
          &lt;field name="arch" type="xml"&gt;
              &lt;field name="inherit_id" ref="account_voucher.view_voucher_form" /&gt;
              &lt;field name="arch" type="xml"&gt;
                  &lt;field name="reference" select="2" position="after"&gt;
                      &lt;field name="test1"/&gt;
                      &lt;field name="create_uid"/&gt;
                      &lt;field name="creator_name"/&gt;
                      &lt;field name="write_uid"/&gt;
                      &lt;field name="write_name"/&gt;
                  &lt;/field&gt;
              &lt;/field&gt;
          &lt;/field&gt;
      &lt;/record&gt;
  
  
    &lt;/data&gt;
  &lt;/openerp&gt;
  </code></pre>
  
  <p>The Journal Voucher form does not show the new fields.
  Where am I going wrong?</p>