This directory contains sources for various "upstream" packages.  The point here is to revision control the sources that are coming outside of the CLIP repo.  Ie, we want to know which version of refpol we are carrying in packages/ at all times.  So we carry refpol in upstreams/refpol, add each and every revision we've ever pulled into packages/, and add a symlink to the version that is currently being used.  

As an example:
foo/foo-1.2.3
foo/foo-2.0.0
foo/foo-current -> foo/foo-2.0.0 

Add general description of the upstreams/ conops.
Add general description of the upstreams/ conops.
