Work to separate TheSchwartz::Worker from Helios::Service and update
Helios::Service to work with the new HeFC Helios::Job.  This new modularization
allows for new worker and job queuing modules in the future.

Helios::TS - work_once(): Changed to call Helios::TS::Worker instead of a
TheSchwartz::Worker subclass.  This allows Helios::Service (and its subclasses)
to be completely independent of TheSchwartz.  Added Helios::TS::Worker to the
list of used modules.

Helios::TS::Worker - new module to separate "worker" code from "service" code.
New work_safely() method defines new calling signature to define a service
class as well as the job to be run.  The work_safely() method also calls
Helios::Service->work() using its new calling signature.

Helios::Service - Helios::Service is now its own base class instead of a
subclass of TheSchwartz::Worker.  Removed documentation relating to
TheSchwartz.
work() - defines new new calling signature to used by Helios:TS::Worker and
other future potential "worker" code.  Modified to work with new HeFC
Helios::Job API.
keep_exit_status_for() - method added to keep Helios::TS::Worker happy.
getJobArgs() - modified to work with new HeFC Helios::Job API.
Removed deprecated methods and any POD referring to them: getConfigFromIni(),
getConfigFromDb(), getFuncidFromDb(), get/setFuncid().  Updated copyright info.