install localeapp
performance enhancement
Merge branch 'stats-performance'
[#65391716]dont use special characters from timeslot names on sql
[#65391716]prevent timeslot name duplication
[#65391716]use time slot id to identify distribution on sql
Merge 65391716-stats-sql-bug to master

[Completes #65391716]
[#65391716] disable uniqueness validation on time slot name (for now)
[#64751132] add workless to enable/disable workers on-demand on Heroku
update contacts client
[#70592222] get last_seen_at attribute from contacts
[#70592222] Set last_seen_at attribute on contacts when creating attendance
fix padma_contacts_synchronizer
[#70592222] fix specs