1) I hacked the internal launcher so that visit would run on hoth.llnl.gov.

2) I made some white space changes to the release notes.

3) I updated the open visit build and install scripts to handle a few machine
   changes. I also did some code clean up on the scripts.



git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@18089 18c085ea-50e0-402c-830e-de6fd14e8384