4 Allow -d and -p accept shell-like patterns and/or regular expressions:
5 -d content-*,-content-*-encoding
8 Add an option -I to completely skip (remove) subparts -- no headers, no body,
12 Never touch multipart/encrypted and multipart/signed.
18 Extend options -eIi to multipart subparts.
21 Add an option to convert dates to the current locate and timezone.
27 Add option --save-as='%format' to generate names for --save-* files. Develop
28 a DSL to conditionally use values from headers and parameters.