[dsc] DSC Release 2.1.1

[Jerry Lundström]

"Hi, everybody!",

This release brings a fix to one bug that I noticed while working on the
Ubuntu and Debian packages :) more about that later.

    https://www.dns-oarc.net/files/dsc/dsc-2.1.1.tar.gz
    f5952a01032741b7bfc2fa932d131e69c82b3f05fbea91a5f2106a8f2bd8e763

Bugfixes:
- 22688c1 Fix pcap/select last_ts
  In some cases `select` will return the fd set as if there are packets
  to read but there aren't. That would case the last timestamp to not
  advance and the `Pcap_run` loop to never finish.
  This fix add a check on packets captured and sets last timestamp if
  none where caught.

Commits:

d115b3f Correct configuration, missing `;`.
22688c1 Fix pcap/select last_ts
b6d3dd8 Fix package dependencies.
c8979c4 Add debian/ubuntu package files

Cheers,
Jerry