updating katlongo's repo

This too is already set to generically work on any machine. Check out the latest [ohiprep:/src/R/common.R](https://github.com/OHI-Science/ohiprep/blob/master/src/R/common.R#L3-L5).

I'm guessing that in fact you're simply trying to push updates so you can pull the latest. It's just that if I accept this merge, then it'll mess things up, so better for you to try a pull request from OHI-Science to katlongo (not the current vice versa) which I'll initiate now.