Squashed commit of the following:

commit d81ae2665fb7ff5123d8472e1d40d7d57fb4b291
Author: Max Gonzih <gonzih@gmail.com>
Date:   Sun Feb 2 16:22:18 2014 +0300

    Check for command-not-found command on suse

commit 004b794c82d79bc9463cdb52784b9b5ea49f1c76
Author: Max Gonzih <gonzih@gmail.com>
Date:   Sun Feb 2 14:04:41 2014 +0300

    Fix cnf handler for Suse and Fedora

    fixes #1208