Made spectra options more consistent for conv and fury fit

Refs #9338
Added spectra range selection to fury fit

Also a spelling correction

Refs #9338
Merge branch 'master' into bugfix/9338_consistent_ida_miniplot_spectra_options

Conflicts:
	Code/Mantid/MantidQt/CustomInterfaces/inc/MantidQtCustomInterfaces/IndirectDataAnalysis.ui
	Code/Mantid/scripts/Inelastic/IndirectDataAnalysis.py

Refs #9338
Handle max and min spectra indexes, correct merge errors

Refs #9338
Fixed ConvFit sequential naming issue

Refs #9338
Use correct number of histograms in FuryFit seq

Refs #9338
Correct FuryFit naming

Refs #9338
Corrected Fury spectrum max index

Refs #9338
Fix failure when no spec_max is given to FuryFit

Refs #9338
Remove _s from fit_type in fury fit result WS logs

Refs #9338
ConvFit FWHM default to instrument resolution

Refs #9338
Load analyser component if it is not in the file

Refs #9338
Merge remote-tracking branch 'origin/bugfix/9338_consistent_ida_miniplot_spectra_options'