2009-01-18 t9md
  * fix bug ( color of aggregated vs graph become monochrome )
	  this fix is quick fix, so supported number of virtual server is 50.
		you can add more color to "color_list".

2008-11-25 t9md
  * change initial RRD DataSource type for from COUNTER to DERIVE with minimal
	value of '0'.

2008-11-24 t9md
  * initial version released.
