Cleaning up some acronym usage as appropriate (EDS & MDC)

Given that we are using "Enterprise" instead of EDS and trying to eliminate the MDC acronym there were a few final nav items that needed cleaned up.

cc @kittenpies 

![nav](https://f.cloud.github.com/assets/2237102/168905/bfff59cc-7a0c-11e2-8c46-79e64101eddb.png)