Doc version tweaks

cloud/rax_cdb

@@ -22,7 +22,7 @@ description:
   - creates / deletes or resize a Rackspace Cloud Databases instance
     and optionally waits for it to be 'running'. The name option needs to be unique since
     it's used to identify the instance.
-version_added: "1.6"
+version_added: "1.8"
 options:
   api_key:
     description:

cloud/rax_cdb_database

@@ -20,8 +20,7 @@ module: rax_cdb_database
 short_description: create / delete a database in the Cloud Databases
 description:
   - create / delete a database in the Cloud Databases.
-version_added: "1.6"
+version_added: "1.88888888ns:
-options:
   api_key:
     description:
       - Rackspace API key (overrides I(credentials))

cloud/rax_cdb_user

@@ -17,10 +17,10 @@
 DOCUMENTATION = '''
 ---
 module: rax_cdb_user
-short_description: create / delete a database in the Cloud Databases
+short_description: create / delete a Rackspace Cloud Database
 description:
   - create / delete a database in the Cloud Databases.
-version_added: "1.6"
+version_added: "1.8"
 options:
   api_key:
     description: