Start adding environment modules
Merge branch 'master' of github.com:brettviren/worch
Start adding setting up of UPS products area.
Maybe UPS is installing and its various per-package files are being produced correctly now.

Maybe.
Explicitly break out ups_prod_dir_prefix.

Also document ART's degeneracy.
Builds a working UPS products area now.
Initial commit
Initial test with a build-time dependency on UPS setup.
Test out doing shell based environment munging.
WIP way point.
Merge branch 'master' of github.com:brettviren/worch
Refactor munging to incorporate shell commands.
Break out general munger code to its own module.

Take care of possible multiline shell functions in the environment.

Add a few tests, fix buglets.

simple-with-ups works with this now.
Too annoying to try to support propagating declared shell functions so punt at the expense of a less DRY configuration.
Update UPS doc and show how to mix in UPS at build time.