Change logs for unison source package in Disco

unison (2.48.4-1ubuntu1) bionic; urgency=medium

  * Merge from Debian unstable.  Remaining changes:
    - Change default logfile directory to .unison by prepending .unison to
      name of logfile in ubase/trace.ml.

unison (2.48.4-1) unstable; urgency=medium

  * New upstream release (Closes: #878462)
  * Update Vcs-*
  * Bump Standards-Version to 4.1.1
  * Remove menu file

 -- Bhavani Shankar <email address hidden>  Tue, 31 Oct 2017 09:23:02 +0530