TODO

TODO: 

try to fix 1 item from list below every day

### APP ###

High priority (mvp)
✅ HANDLE command errors (catch errors, mostly for DX)
✅ HANDLE callback requests properly, add success messages, show warnings
✅ REMOVING debtors by click NO button
✅ GROUP debtors in detailed expense view
✅ REPAID
✅ UNREPAID
✅ EXPENSES LIST (global/in chat) 

Low priority
* ✅ reply keyboard
* SETTINGS (just design, probably set currency)
* NOTIFICATION when debt was repaid (by single person, by all participants)
* DEBTORS LIST (show ballance, active expenses, forgive all)
* DEADLINE (investigate)
* HANDLE USER TIMEZONE
* ✅ INLINE MODE, send expense
* Major hustler in group
* Website, billings integration

### ENV ###
* deploy to server
* travis CI
* code coverage