mark unported modules as non-installable

__openerp__.py

@@ -15,5 +15,5 @@ Tested on odoo 8.0 ab7b5d7732a7c222a0aea45bd173742acd47242d
         'security/ir.model.access.csv',
         ],
     'qweb': ['static/src/xml/main.xml'],
-    'installable': True,
+    'installable': False,
 }