Full copyright update.

debian/changelog

@@ -5,6 +5,7 @@ liblxqt (0.15.0-0ubuntu1) UNRELEASED; urgency=medium
     - Update upstream signing key.
   * Run wrap-and-sort.
   * Add libkf5windowsystem-dev to build dependencies.
+  * Full copyright update.
 
  -- Simon Quigley <tsimonq2@ubuntu.com>  Thu, 23 Apr 2020 03:19:56 -0500
 

debian/copyright

@@ -5,6 +5,10 @@ Source: https://github.com/lxqt/liblxqt
 Files: *
 Copyright: 2012-2019 LXQt team
            2010-2012 Razor team
+           2012 The Chromium Authors
+           2012-2013 Alec Moskvin <alecm@gmx.com>
+           2016-2018 P.L. Lucas
+           2018 Luís Pereira <luis.artur.pereira@gmail.com>
 License: LGPL-2.1+
 
 Files: debian/*