Move to ELAN e.V.

This patch moves the role to the `elan-ev` organization on GitHub and
the `elan` namespace in Galaxy.

Author: lkiesow

README.md

@@ -39,6 +39,6 @@ Example of how to configure and use the role:
 - hosts: servers
   become: true
   roles:
-    - role: lkiesow.opencast_postgresql
+    - role: elan.opencast_postgresql
       opencast_postgresql_password: secret
 ```

meta/main.yml

@@ -1,7 +1,8 @@
 galaxy_info:
   author: Lars Kiesow
   role_name: opencast_postgresql
-  namespace: lkiesow
+  namespace: elan
+  company: ELAN e.V.
   description: Install and prepare PostgreSQL for Opencast
   license: BSD-3-Clause
   min_ansible_version: 2.9