[Hallcsw] git info in bash prompt

[Brad Sawatzky]

Meant to do this before I left in December, but it fell off the list.
  https://hallcweb.jlab.org/wiki/index.php/Git_Howto#Tweaks

If it doesn't work for you, drop me a line with the symptoms.  Note that
this script assumes you're using bash, not tcsh.

-- Brad

-- 
Brad Sawatzky, PhD <brads at jlab.org>  -<>-  Jefferson Lab / Hall C / C111
Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
The most exciting phrase to hear in science, the one that heralds new
  discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov