Intermediate commit

TODO: Within JEXFunction run only, return the objects that are intended
to be saved. Be aware of difference between saving permanently and
having stuff around for the rest of the workflow. Erwin and I decided
to let errors on missing inputs occur if the output is not saved.
Done

Function now counts each roi in a pattern roi separately.
Merge branch 'Update-"Count-Points-in-Roi"-function-to-work-with-patterned-roi-regions'
Enabled check boxes

Should be good besides random bugs :-)
Merge branch 'Implement-function-output-check-boxes'
Changed the 'save' button of the import panel to 'import

Avoids confusion, implying they still need to save the database.