Port ibus-unikey to gtk3

[Jeremy Bícha]

gtk3 was declared stable in September 2016 with the gtk 3.22 release. ibus-unikey should switch to gtk3.

[Launchpad Janitor (janitor)]

This bug was fixed in the package ibus-unikey - 0.7.0~beta1-0.1

---------------
ibus-unikey (0.7.0~beta1-0.1) unstable; urgency=medium

  * Non-maintainer upload
  * New upstream release (LP: #1872319)
  * New upstream location, so
    - Homepage changed in d/control
    - d/watch modified
    - Download location changed in d/copyright
  * debian/control:
    - Change to gtk3 (LP: #1736604)
    - Build-Depend on debhelper-compat 12 (and drop d/compat)
    - Drop redundant {build,} dependencies
    - Depend on ibus, ibus-gtk and ibus-gtk3
    - Add Rules-Requires-Root field
    - Bump Standards-Version to 4.5.0
  * debian/rules:
    - Dropped the "--libexecdir=/usr/lib/ibus" configure flag
      (Closes: #955245)
    - Housecleaning - keep it simple
  * debian/ibus-setup-Unikey.desktop, debian/rules:
    - Install .desktop file for setup (Closes: #956609)
  * debian/copyright:
    - Bump copyright years
  * debian/docs:
    - Adapted to present file

 -- Gunnar Hjalmarsson <email address hidden> Thu, 16 Apr 2020 22:39:00 +0200