subject list

Should contain info about:

• flying team location
• visit list, one column per visit, should contain status of visit (missed, OK, in progress, upcoming) and dates

created branch 140-subject-list

• sorting for visit columns should be done by start date
• filtering by the columns should be done by "status" of the visit

changed milestone to %v.0.10.0

mentioned in merge request !85 (merged)

closed via commit f4777b41

closed via merge request !85 (merged)