Allow frameworks to be diabled via configuration directive

cloud_controller/spec/staging/disabled_frameworks_spec.rb

@@ -0,0 +1,15 @@
+require 'spec_helper'
+
+describe "A Framework should be able to be disabled" do
+
+  it 'should not list a disabled framework' do
+    node_path = File.join(STAGING_TEMP, 'node.yml')
+    node_manifest = File.read(node_path)
+    node_manifest += "disabled: true"
+    File.open(node_path, 'w') {|f| f.write(node_manifest) }
+    StagingPlugin.load_all_manifests
+    manifests = StagingPlugin.manifests
+    manifests.should_not have_key 'node'
+  end
+
+end

cloud_controller/staging/common.rb

@@ -155,7 +155,11 @@ class StagingPlugin
   def self.load_manifest(path)
     framework = File.basename(path, '.yml')
     m = YAML.load_file(path)
-    manifests[framework] = m
+    unless m['disabled']
+      manifests[framework] = m
+    else
+      manifests.delete(framework)
+    end
   rescue
     puts "Failed to load staging manifest for #{framework} from #{path.inspect}"
     exit 1