Change logs for opensm source package in Artful

opensm (3.3.20-1) unstable; urgency=medium

  * New upstream release.
  * Update Vcs-* fields.
  * Fix the team name in debian/control
  * Enable hardening.
  * Bump Standards-Version to 3.9.8, no changes required.
  * Add symbols file for libosmcomp3, libosmvendor4 and libopensm5a.
  * Add patch with a bunch of typo fixes.

 -- Ana Beatriz Guerrero Lopez <email address hidden>  Thu, 08 Sep 2016 23:11:53 +0200