- Add "unsupported" plugin status

- Mark both amqp plugins as 'unsupported'. Seeking a maintainer for
  both the code and the community support for these plugins.

docs/plugin-status.md

@@ -15,6 +15,13 @@ while conveying to the end-user a set of expectations about that plugin. This
 allows you to make more informed decisions about when and where to use the
 functionality provided by the new plugin.
 
+## Unsupported
+
+This plugin is not supported. It should work, but if you have any problems with
+it you are unlikely to find any help due to lack of experience in the community.
+
+Additionally, this label may mean that a plugin has no active maintainer.
+
 ## Experimental
 
 When a plugin is in the `experimental` state, it is essentially untested. This

lib/logstash/config/mixin.rb

@@ -172,6 +172,8 @@ module LogStash::Config::Mixin
     def validate_plugin_status
       docmsg = "For more information about plugin statuses, see http://logstash.net/docs/#{LOGSTASH_VERSION}/plugin-status "
       case @plugin_status
+      when "unsupported"
+        @logger.warn("Using unsupported plugin '#{@config_name}'. This plugin isn't well supported by the community and likely has no maintainer. #{docmsg}")
       when "experimental"
         @logger.warn("Using experimental plugin '#{@config_name}'. This plugin is untested and may change in the future. #{docmsg}")
       when "beta"

lib/logstash/inputs/amqp.rb

@@ -17,7 +17,7 @@ require "logstash/namespace"
 class LogStash::Inputs::Amqp < LogStash::Inputs::Threadable
 
   config_name "amqp"
-  plugin_status "beta"
+  plugin_status "unsupported"
 
   # Your amqp broker's custom arguments. For mirrored queues in RabbitMQ: [ "x-ha-policy", "all" ]
   config :arguments, :validate => :array, :default => []

lib/logstash/outputs/amqp.rb

@@ -15,7 +15,7 @@ class LogStash::Outputs::Amqp < LogStash::Outputs::Base
   MQTYPES = [ "fanout", "direct", "topic" ]
 
   config_name "amqp"
-  plugin_status "beta"
+  plugin_status "unsupported"
 
   # Your amqp server address
   config :host, :validate => :string, :required => true