Log Message:
Import IM version 149.
Based on packaged by URA Hiroshi in pkgsrc-wip
and Tetsuya Isaki via private mail.

IM provides a series of user interface commands (imput, imget, imls, ...)
and backend Perl5 modules to integrate E-mail and NetNews user interface.
They are designed to be used both from Mew version 1.x and on command line.