Paul Bauer authored Oct 24, 2018 and Mark Abraham committed Nov 05, 2018

Brought all the old interfaces back to a state where they can always
compile regardless of the build configuration, and give fatal errors
if used from a configuration that didn't support the method.

When configured, this should work as before, but we have no ability to
test that in Jenkins.

Added some necessary const correctness.

Did QM/MM preparation all in the same place, to simplify runner.cpp

Added deprecation status to release notes.

Refs #2706, #2569

Change-Id: I4a6566c60bfbf27a7b1916be1874b36987fb7da5