Moved AWS modules over to common module fragments

Created common module doc fragment, and applied to all
modules that use ec2_connect or connect_to_aws as
they definitely share the common doc fragments

library/cloud/ec2_eip

@@ -23,24 +23,6 @@ options:
     required: false
     choices: ['present', 'absent']
     default: present
-  ec2_url:
-    description:
-      - URL to use to connect to EC2-compatible cloud (by default the module will use EC2 endpoints)
-    required: false
-    default: null
-    aliases: [ EC2_URL ]
-  ec2_access_key:
-    description:
-      - EC2 access key. If not specified then the EC2_ACCESS_KEY environment variable is used.
-    required: false
-    default: null
-    aliases: [ EC2_ACCESS_KEY ]
-  ec2_secret_key:
-    description:
-      - EC2 secret key. If not specified then the EC2_SECRET_KEY environment variable is used.
-    required: false
-    default: null
-    aliases: [ EC2_SECRET_KEY ]
   region:
     description:
       - the EC2 region to use
@@ -53,28 +35,6 @@ options:
     required: false
     default: false
     version_added: "1.4"
-  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"
-  profile:
-    description:
-      - uses a boto profile. Only works with boto >= 2.24.0
-    required: false
-    default: null
-    aliases: []
-    version_added: "1.6"
-  security_token:
-    description:
-      - security token to authenticate against AWS
-    required: false
-    default: null
-    aliases: []
-    version_added: "1.6"
   reuse_existing_ip_allowed:
     description:
       - Reuse an EIP that is not associated to an instance (when available), instead of allocating a new one.
@@ -82,7 +42,7 @@ options:
     default: false
     version_added: "1.6"
 
-requirements: [ "boto" ]
+extends_documentation_fragment: aws
 author: Lorin Hochstein <lorin@nimbisservices.com>
 notes:
    - This module will return C(public_ip) on success, which will contain the