leaflet client: fix TriMet-reported bug in StopsLayer
otp-datastore: delete old sessions on user delete
otp-datastore: added user management functionality. related to #1169
calltaker/fieldtrip module: improved handling of authenticated users per #1169
fix bug with authenticated module initialization (follow up to #1169)
calltaker module: fix ms/sec issue
fix ms/sec coversion issues