[FIX] website_membership: fixes / improvements

- added website_published field on res.partner, because it is used but not defined
- renamed website_membership.py to res_partner.py (because it modified this model) and moved it
to models directory.
- updated init files accordingly

bzr revid: tde@openerp.com-20131001143540-0tyv309l3ws5wied

addons/website_membership/__init__.py

@@ -1,2 +1,2 @@
 import controllers
-import website_membership
+import models

addons/website_membership/models/__init__.py

@@ -0,0 +1 @@
+import res_partner

addons/website_membership/models/res_partner.py

@@ -2,9 +2,13 @@
 
 from openerp.osv import osv, fields
 
-class res_partner(osv.osv):
+
+class WebsiteResPartner(osv.Model):
     _inherit = 'res.partner'
+
     _columns = {
+        'website_published': fields.boolean(
+            'Publish', help="Publish on the website"),
         'website_description': fields.html('Description for the website'),
         'website_short_description': fields.text('Sort description for the website'),
     }