* Adding 'self.' to the spec call for configure_args
* Updating this to set spec to self.spec
* More updates to the configure_args spec calls
* Another spec issue
* Another spec issue.
* And another spec issue
* Switching cmor back to self.spec.
Package repositories now look like this:
top-level-dir/
repo.yaml
packages/
libelf/
package.py
mpich/
package.py
...
This leaves room at the top level for additional metadata, source,
per-repo configs, indexes, etc., and it makes it easy to see that
something is a spack repo (just look for repo.yaml and packages).
