Standalone Sherpa 4.5.0 Released as Source Code

I have released the standalone version of Sherpa 4.5.0 at the Sherpa website:

http://cxc.cfa.harvard.edu/contrib/sherpa/

As in past releases, the purpose is to allow Python users to install Sherpa as a Python module, without reference to any other CIAO package or program.

I release the source code tarball, sherpa-4.5.0.tar.gz, that contains all the Sherpa source code we released with CIAO 4.5.  Release notes can be found at NOTES-4.5.0.txt.  The new version is also available at the cxcdev github repository for Sherpa.

This is a major release, to sync the standalone version with the recent CIAO 4.5 release.