Various NERSC config changes:
Various NERSC config changes:

- Use new bootstrapper config into account.
- Update notes.
- Enable CA CERT staging
- Change CCM entries to use CCM LRMS isntead of LM.
- Fix for tunnel on Hopper.

JensTimmerman/radical.pilot,JensTimmerman/radical.pilot,JensTimmerman/radical.pilot,JensTimmerman/radical.pilot