Zenoss Swap Threshold Fixes

One of the recur­ring prob­lems I have with Zenoss is fix­ing the swap thresh­old issue. Basically, if your swap space is less than 1G, you’re stuck with an alarm inform­ing you that there’s less than 1G of swap total. The options are to hack it to increase the thresh­old (by decreas­ing the minimum-free thresh­old), or …