Copyright for libotr source package in Oracular

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: https://otr.cypherpunks.ca/

Files: *
Copyright:
    Copyright (C) 2004-2016  Ian Goldberg, David Goulet, Rob Smits,
                             Chris Alexander, Willy Lew, Lisa Du,
			     Nikita Borisov
			     
License: LGPL-2.1+

Files: debian/*
Copyright:
  © 2005-2012 Thibaut VARENE 
  © 2013 Micah Anderson 
  © 2014 Debian OTR Team 
  © 2016 Debian Privacy Tools Maintainers 
License: LGPL-2.1+

Files: tests/*
Copyright:
    Copyright (C) 2014   Julien Voisin ,
                         David Goulet 
License: GPL-2

Files: toolkit/*
Copyright:
    Copyright (C) 2004-2014  Ian Goldberg, David Goulet, Rob Smits,
                             Chris Alexander, Nikita Borisov
		             
License: GPL-2+

License: GPL-2
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License, version 2 only,
 as published by the Free Software Foundation.
 .
 On Debian systems, the complete text of version 2 of the GNU General
 Public License can be found in '/usr/share/common-licenses/GPL-2'.

License: GPL-2+
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; version 2 dated June, 1991, or (at
 your option) any later version.
 .
 On Debian systems, the complete text of version 2 of the GNU General
 Public License can be found in '/usr/share/common-licenses/GPL-2'.

License: LGPL-2.1+
 This program is free software; you can redistribute it and/or modify it
 under the terms of the GNU Lesser General Public License as published by the
 Free Software Foundation; version 2.1 of the License, or (at
 your option) any later version.
 .
 On Debian systems, the complete text of version 2.1 of the GNU Lesser
 General Public License can be found in `/usr/share/common-licenses/LGPL-2.1'.