Changelog:
- 8c78f11 Add info about debug logs in README and Cargo.toml
- ef338f3 ui: add PGP settings in configuration
- c44056a melib: fix bug in parser::parts
- 6d40a57 ui: scroll in shortcuts panel
- f27b815 Add verification of GPG signed messages
- 9305e54 melib: add a `body` field to Attachment
- 5a53020 Add debug-tracing feature to all crates
- 26e4d50 Try to save sent messages elsewhere if Sent folder fails
- 415fb24 ui: display status bar messages for 5 seconds
- b07db29 ui: add timer tick every 300ms
- d007ef7 testing: add server_port to IMAP shell app, imapconn
- ee82ae1 imap: add support for imaps connections
- 9563007 Turn off debug tracing prints in stderr by default
- 6e75160 melib: turn unicode algos and backends into features
- f066f35 melib: add get_tags to support subaddressing
- 7fe6532 ui: add log on child waiting error
- 93de60b maildir: allow Maildir stores as root_folder
- fb7b038 ui: add set_seen shortcut in {Compact,Conversation}
- fada0ff ui: use ThreadNode instead of Envelope to print entries in ConversationsListing
- 146acb7 ui: check account conf for index style in listing.rs
- 8287181 ui: return valid values in ListingTrait::coordinates
- fe28e84 ui: send update event on folders even on no notification
- 7dc3efa imap: allow conn to be offline and retry on demand
- b98ce88 melib: fix wrong validation in Maildir save()