DOCS: standardize on EXAMPLES (a.k.a. Docs-JumboPatch JetLag Edition)

Migrated all examples: in DOCUMENTATION=''' string to standalone EXAMPLES=''' string
  Added deprecation warning to moduledev.rst and remove deprecated example from it
  Fixed up a few typos and uppercased some acronyms.
  add consistency to how EXAMPLES are formatted

library/messaging/rabbitmq_plugin

@@ -46,9 +46,11 @@ options:
     required: false
     default: enabled
     choices: [enabled, disabled]
-examples:
-  - code: rabbitmq_plugin names=rabbitmq_management state=enabled
-    description: Enables the rabbitmq_management plugin
+'''
+
+EXAMPLES = '''
+# Enables the rabbitmq_management plugin
+- rabbitmq_plugin: names=rabbitmq_management state=enabled
 '''
 
 class RabbitMqPlugins(object):

library/messaging/rabbitmq_user

@@ -86,9 +86,17 @@ options:
     required: false
     default: present
     choices: [present, absent]
-examples:
-  - code: rabbitmq_user user=joe password=changeme vhost=/ configure_priv=.* read_priv=.* write_priv=.* state=present
-    description: Add user to server and assign full access control
+'''
+
+EXAMPLES = '''
+# Add user to server and assign full access control
+- rabbitmq_user: user=joe
+                 password=changeme
+                 vhost=/
+                 configure_priv=.*
+                 read_priv=.*
+                 write_priv=.*
+                 state=present
 '''
 
 class RabbitMqUser(object):

library/messaging/rabbitmq_vhost

@@ -50,9 +50,11 @@ options:
       - The state of vhost
     default: present
     choices: [present, absent]
-examples:
-   - code: 'rabbitmq_vhost: name=/test state=present'
-     description: Ensure that the vhost /test exists.
+'''
+
+EXAMPLES = '''
+# Ensure that the vhost /test exists.
+- rabbitmq_vhost: name=/test state=present
 '''
 
 class RabbitMqVhost(object):