Refs #4867 - More improvements to IDA.py from Spencer.

* Added logger notices actuviated by the Verbose option.
* Changed all calls to algorithms so that the Property is referred to
explicitly by name.
* Tidied up the import statements.
* MSDFit - fitting algorithm is changed to PlotPeakByLogValue.  Plots result
versus run-number or temperature.
* FuryFit - created prototype routines to do a MultiFit based on the SeqFit
routines.  MultFit does a simultaneous fit for all spectra for a
StretchedExp with the Beta parameter tied so that all spectra use the same
value.  This is ready for implementing in updated Interface.
* ApplyCorrections - Fit algorithm now works with updated API.  New plotting
routines.