- All packages go into either cmd or pkg directories
- Most packages renamed
- Server packages moved into pkg/server
- sanitize moved into webui, as that's the only place it's used
- filestore moved into pkg/storage/file
- Makefile updated, and PKG variable use fixed
- Multiple output formats
- Signals matches via exit status for shell scripts
- Match against To, From, Subject via regular expressions
- Can optionally delete matched messages
