Looks like the Grbl team released a new version 0.8c up from 0.8a. This new version messes up my Grbl Controller because to get the current settings you now have to do a double dollar ($$) instead of a single $. Also, more settings are now available. Working on a fix.

An index of the latest docs for Grbl can be found here:

https://github.com/grbl/grbl/wiki/_pages

Here is the settings page:

https://github.com/grbl/grbl/wiki/Configuring-Grbl-v0.8