For opkhelper 3.1.0
-------------------

  * Write oh-compress.

Possible Future Tasks
---------------------

  * Make oh-installfiles link rather than move files.  Then it can count links
    to identify files that have been installed zero or multiple times.
  * Add `--with-pkgversion="${os} ${OPK_SOURCE}"` to lib/buildsystem/autoconf.sh
    for packages like eglibc and gcc-4.7.