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.

base_transaction_id/__openerp__.py

@@ -21,7 +21,7 @@
 
 {'name': 'Base transaction id for financial institutes',
  'version': '1.0',
- 'author': 'Camptocamp',
+ 'author': "Camptocamp,Odoo Community Association (OCA)",
  'maintainer': 'Camptocamp',
  'category': 'Hidden/Dependency',
  'complexity': 'easy',