Allow running one or more commands based on the value of
a global configuration variable. This could, of course,
be done in a Python module with some custom code,
but for simple cases this is more straightforward
to configure through module instances.
Uses the CommandList developed for the ShellProcess
module to do the actual work.
FIXES#874
This is meant to run one or more jobs based on specific global
configuration values; if could also be done by a Python
module with just some if's, but this one can be used with
just the config file and covers a bunch of use-cases.