Downgrade mysql cookbook for now

It doesn't play well with our current dev server setup

cookbooks/rbac/libraries/rbac.rb

@@ -0,0 +1,15 @@
+# This module is used to retain state during the course of a chef
+# run. The LWRPs in the cookbook modify a global hash in this module,
+# and at the end of the chef run if user authorizations change they
+# are written out into the system.
+#
+module RBAC
+  def self.authorizations
+    @authorizations ||= {}
+  end
+
+  def self.add_authorization(username, auth)
+    authorizations[username] ||= []
+    authorizations[username] << auth
+  end
+end