Memory test

[Steven Jenovai]

I am still in the setup and testing phase with Hobbit. I am running
4.0.4 on a Suse 9.0 Linux box and monitoring about 125 hosts currently.
I have run into a few issues, but overall, the installation has been
extremely easy.  

I am trying to figure out how to get the memory column and associated
graphs to show up.  Do I need to add an external to do this, or is this
functionality built into Hobbit?

Thanks!