bug #1064: close connection after action finishes (VMM)

(cherry picked from commit 7bace8a793)

src/mad/ruby/ssh_stream.rb

@@ -193,6 +193,10 @@ class SshStreamCommand < RemotesCommand
 
         return self
     end
+
+    def close
+        @stream.close
+    end
 end
 
 

src/vmm_mad/exec/one_vmm_exec.rb

@@ -94,6 +94,9 @@ class VmmAction
     def run(steps, info_on_success = nil)
         result = execute_steps(steps)
 
+        @ssh_src.close if @ssh_src
+        @ssh_dst.close if @ssh_dst
+
         #Prepare the info for the OpenNebula core
         if DriverExecHelper.failed?(result)
             info = @data[:failed_info]