[#64930574]update accounts client
[#64930574]add padma status to contacts
[#64930574]synchronizer now only needs to keep existing contacts up to date
[#64930574]only show students on stats
[#64930574]filter recurrent contacts to show only students and improve performance by not going to contacts ws on every call
Merge 64930574-stats-bug to master

[Completes #64930574]