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.

pingen/__openerp__.py

@@ -22,7 +22,7 @@
 {
     'name': 'pingen.com integration',
     'version': '1.0',
-    'author': 'Camptocamp',
+    'author': "Camptocamp,Odoo Community Association (OCA)",
     'maintainer': 'Camptocamp',
     'license': 'AGPL-3',
     'category': 'Reporting',