Use continuous scheduler for archer.
Changes for Indiana resources.

- Use continous scheduler for BigRed2 and Quarry.
- Use correct hostname for BigRed2
- Use explicit python2 version on Quarry (python3 is default now!)
- Use global virt env on BigRed2.
Use continuous scheduler for SuperMUC and Yellowstone.
XSEDE resource config changes.

- Use continuous scheduler for Stampede, Blacklight, Gordon, Trestles.
- Fix hostname for blacklight.
- Use correct python version on Gordon and Trestles.
Use more appropriate name for non-lrms execution.