Modifications for IAP.  Make things less optimized.
A few more touchups for groovy
Clear ROS_HOSTNAME in clear_rosws()
Merge pull request #3 from mboulet/patch-1

Clear ROS_HOSTNAME in clear_rosws()
committing changes.
Merge branch 'master' of https://github.com/mjcarroll/dotfiles
Merge branch 'iap' of https://github.com/mjcarroll/dotfiles into iap
Merging changes.