PROPOSED
BACKLOG
Attach overwrites existing attachment
Use instance or make static functions for icalmanager
PENDING
Ensure tzid is valid if given
Only single letters in short flags
Add setting urls for host, provider and organizer
DOING
REVIEW
Add flag for domain in the identifier
Add end, duration requirements to help string for create
FINISHED
Calendar edit argument should be positional not flag
Automatically set mailto: ALTREP on contact when value is valid email
Add DTSTAMP of calendar entry creation
Make calendar creation interactive
Add random UUID for UID
Add CLASS:PUBLIC on calendar entry creation
use UTC as default tzid
Add STATUS:CONFIRMED on calendar entry creation
BLOCKED