Changed "Show Hosts Scaled" button indexes

In the Cluster view, when changing the number of columns to 0, the behavior of Auto/Same appear to be reversed.  This change, unless we're completely misunderstanding it, results in "Auto" being selected by default and all the server metrics show as we expect.

![ganglia___goapp_cluster_report](https://f.cloud.github.com/assets/406732/2329161/20d04174-a411-11e3-91c9-713b96467e3b.png)

![ganglia___goapp_cluster_report](https://f.cloud.github.com/assets/406732/2329164/2af9161c-a411-11e3-9859-4d9f785df6e8.png)