update platforms in meta-file

this way the match the style used by ansible galaxy.

Author: Sebastian Gumprich

meta/main.yml

@@ -1,28 +1,29 @@
 ---
 galaxy_info:
   author: "Sebastian Gumprich"
-  description: ' This Ansible playbook provides numerous security-related configurations, providing all-round base protection.'
+  description: 'This Ansible playbook provides numerous security-related configurations, providing all-round base protection.'
   company: Hardening Framework Team
   license: Apache License 2.0
   min_ansible_version: '1.9'
   platforms:
     - name: EL
       versions:
-        - 6.4
-        - 6.5
+        - 6
     - name: Oracle Linux
       versions:
-        - 6.4
-        - 6.5
+        - 6
     - name: Ubuntu
       versions:
-        - 12.04
-        - 14.04
+        - precise
+        - trusty
     - name: Debian
       versions:
-        - 6
-        - 7
-  categories:
+        - squeeze
+        - wheezy
+  galaxy_tags:
     - system
     - security
+    - hardening
+    - database
+    - mysql
 dependencies: []