Add OCA as author of OCA addons

In order to get visibility on https://www.odoo.com/apps the OCA board has
decided to add the OCA as author of all the addons maintained as part of the
association.

web_hide_buttons/__openerp__.py

@@ -29,7 +29,7 @@ To hide both buttons add the following element to the xml for the
 ir.actions.act_window:
 <field name="context">{'nodelete': '1', 'nocreate': '1'}</field>
 ''',
-    'author': 'Therp BV',
+    'author': "Therp BV,Odoo Community Association (OCA)",
     'website': 'http://www.therp.nl',
     'license': 'AGPL-3',
     'depends': [