Updating CHANGELOG for the new validate_certs feature

Also removing validate_cert option from the cloudformation module docs,
as it does not use the standard ec2 connection.

CHANGELOG.md

@@ -16,6 +16,7 @@ Major features/changes:
 * acl module now handles 'default' and allows for either shorthand entry or specific fields per entry section
 * play_hosts is a new magic variable to provide a list of hosts in scope for the current play.
 * ec2 module now accepts 'exact_count' and 'count_tag' as a way to enforce a running number of nodes by tags.
+* all ec2 modules that work with Eucalyptus also now support a 'validate_certs' option, which can be set to 'off' for installations using self-signed certs.
 
 
 New modules:

library/cloud/cloudformation

@@ -88,14 +88,6 @@ options:
     required: false
     aliases: ['aws_region', 'ec2_region']
     version_added: "1.5"
-  validate_certs:
-    description:
-      - When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.
-    required: false
-    default: "yes"
-    choices: ["yes", "no"]
-    aliases: []
-    version_added: "1.5"
 
 requirements: [ "boto" ]
 author: James S. Martin