Merge remote branch 'origin/feature/8477_fit_wiki_page'
Merge remote branch 'origin/feature/8496_SaveHKL_noSample'
Merge remote branch 'origin/feature/5482_mantidmatrix'
Merge remote branch 'origin/bugfix/6238_save_instrument_image'
Doc changes to loadmcstas. re #8272
Merge branch 'feature/8272_doc_change_loadmcstas' into develop