Copyright for libass source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libass
Upstream-Contact: Grigori Goronzy 
Source: https://github.com/libass/libass

Files: *
Copyright:
 2006-2016 libass contributors
 2009-2011,2015 Grigori Goronzy 
 2006 Evgeniy Stepanov 
 2013 Rodger Combs 
 2015 Oleg Oshmyan 
 2015 Stephan Vedder 
 2015 Vabishchevich Nikolay 
 2011-2014 Yu Zhuohuang 
License: ISC

Files: libass/ass_strtod.c
Copyright:
 1994 Sun Microsystems, Inc
 1988-1993 The Regents of the University of California
 2016 Oleg Oshmyan 
License: other-1

Files: ltmain.sh
Copyright:
 1996-2008 Free Software Foundation, Inc
License: GPL-2+

Files: debian/*
Copyright:
 2011-2013 Alessio Treglia 
 2008 Christophe Mutricy ,
 2014-2016 Sebastian Ramacher 
License: GPL-2+

License: ISC
 Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
 copyright notice and this permission notice appear in all copies.
 .
 THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

License: other-1
 Permission to use, copy, modify, and distribute this
 software and its documentation for any purpose and without
 fee is hereby granted, provided that the above copyright
 notice appear in all copies.  The University of California
 makes no representations about the suitability of this
 software for any purpose.  It is provided "as is" without
 express or implied warranty.

License: GPL-2+
 This package 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; either version 2 of the License, or
 (at your option) any later version.
 .
 This package is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 On Debian systems, the complete text of the GNU General Public
 License can be found in `/usr/share/common-licenses/GPL-2'.
 .
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see .