Updates to INSTALL based on pulling from README and consolidating some duplication.  Corrected docs for MPI and docs generation.  Moved some content to Developer Portal.  I'm done with INSTALL, Bill agreed to do a quick once-over.
Updates to INSTALL based on pulling from README and consolidating some duplication.  Corrected docs for MPI and docs generation.  Moved some content to Developer Portal.  I'm done with INSTALL, Bill agreed to do a quick once-over.

git-svn-id: c6750f7dd89925e309f580f56430152d063ff36c@862 aa0779c3-6ec2-4b84-a212-a405c134cd8d

pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA,pemryan/DAKOTA