Use 64 A3 sample for the user study
Change DB for user study so that is we can continue on develop at the same time
Identifier do not fail if it knows only one category, but return it with a 1.0 probability
Set number of models scrapped to 32 to fit in a 4 column display like the HMI.
WIP
Add end of session recap.
WIP user_study gui
Merge branch 'master' into develop