Bug in Driver action manager

git-svn-id: http://svn.opennebula.org/one/trunk@859 3034c82b-c49b-4eb3-8279-a7acafdc01c0

src/mad/ruby/ActionManager.rb

@@ -151,7 +151,7 @@ class ActionManager
 
                 @threads_cond.signal
             else
-                i = @action_queue.index{|x| x[:id] == action_id}
+                i = @action_queue.select{|x| x[:id] == action_id}.first
                 @action_queue.delete_at(i) if i
             end
         }