Update list of third party libraries

THANKS

@@ -2,7 +2,7 @@ Some VLC plugins use external libraries and make extensive use of the
 following persons' or companies' code:
 
 FAAD2 - Copyright (c) Nero AG, www.nero.com" - GPLv2 or later
-FFmpeg - Copyright (c) 2000-2010 the FFmpeg developers - LGPLv2.1 or later
+FFmpeg - Copyright (c) 2000-2015 the FFmpeg developers - LGPLv2.1 or later
 FluidSynth - Copyright (c) 2003-2010 Peter Hanappe, Conrad Berhörster, Antoine
    Schmitt, Pedro López-Cabanillas, Josh Green, David Henningsson - LGPLv2.1 or
    later
@@ -23,36 +23,36 @@ harfbuzz - Copyright (c) 2010, 2011, 2012  Google, Inc., (c) 2012  Mozilla
    (c) 2005 David Turner, (c) 2004, 2007, 2008, 2009, 2010 Red Hat, Inc.,
    (c) 1998-2004 David Turner and Werner Lemberg - Old MIT License
 liba52 - Aaron Holtzman & Michel Lespinasse, et al. - GPLv2 or later
-libav - Copyright (c) 2000 - 2013 the libav developers - LGPLv2.1 or later
-libass - Copyright (c) 2006-2013 Grigori Goronzy et al. - ISC License
-libbluray - Copyright (c) 2009-2013 VideoLAN and authors - LGPLv2.1 or later
+libav - Copyright (c) 2000 - 2015 the libav developers - LGPLv2.1 or later
+libass - Copyright (c) 2006-2015 Grigori Goronzy et al. - ISC License
+libbluray - Copyright (c) 2009-2015 VideoLAN and authors - LGPLv2.1 or later
 libcaca - Copyright (c) 2004 Sam Hocevar - WTFPL / LGPLv2.1 or later /
    GPLv2 or later / ISC
 libdca - Copyright (c) 2004-2007 VideoLAN and authors - GPLv2 or later
-libdvbpsi - Copyright (c) 2001-2013 VideoLAN and authors - LGPLv2.1 or later
-libdvdcss - Copyright (c) 2001-2012 VideoLAN and authors - GPLv2 or later
+libdvbpsi - Copyright (c) 2001-2015 VideoLAN and authors - LGPLv2.1 or later
+libdvdcss - Copyright (c) 2001-2015 VideoLAN and authors - GPLv2 or later
 libdvdread - LGPLv2.1 or later
 libdvdnav - LGPLv2.1 or later
-libebml - Copyright (c) 2002-2013 Steve Lhomme - LGPLv2.1 or later
-libFLAC - Copyright (c) 2001 - 2013 Josh Coalson et al. - Xiph.org BSD license
+libebml - Copyright (c) 2002-2015 Steve Lhomme - LGPLv2.1 or later
+libFLAC - Copyright (c) 2001 - 2014 Josh Coalson et al. - Xiph.org BSD license
 libgme - LGPLv2.1 or later
 libgpg-error - Copyright 2003, 2004, 2005, 2006, 2007, 2013 g10 Code GmbH
    - LGPLv2.1 or later
 libkate - Copyright (c) 2008-2011 Vincent Penquerc'h - 3-clause BSD License
-liblive555 - Copyright (c) 1996-2013 Live Networks, Inc. - LGPLv2.1 or later
+liblive555 - Copyright (c) 1996-2015 Live Networks, Inc. - LGPLv2.1 or later
 libmad - Copyright (c) 2000-2004 Robert Leslie, et al. - GPLv2 or later
-libmatroska - Copyright (c) 2002-2013 Steve Lhomme - LGPLv2.1 or later
+libmatroska - Copyright (c) 2002-2015 Steve Lhomme - LGPLv2.1 or later
 libmpeg2 - Aaron Holtzman & Michel Lespinasse, et al. - GPLv2 or later
 libmodplug - Oliver Lapicque, Konstanty - Public domain
-libogg, libvorbis - Copyright (c) 2002 Xiph.org Foundation - Xiph.org BSD
+libogg, libvorbis - Copyright (c) 2002-2015 Xiph.org Foundation - Xiph.org BSD
    license
-libpostproc - Copyright (C) 2001-2012 Michael Niedermayer, et al. - GPLv2 or
+libpostproc - Copyright (C) 2001-2015 Michael Niedermayer, et al. - GPLv2 or
    later
-libpng - Copyright (c) 2004, 2006-2012 Glenn Randers-Perhson, et al. - libpng
+libpng - Copyright (c) 2004, 2006-2014 Glenn Randers-Perhson, et al. - libpng
    license
 libsamplerate - Copyright (c) 2002-2011 Erik de Castro Lopo - GPLv2 or later
 libschroedinger - Copyright (c) 2006 BBC and Fluendo - MIT License
-libsdl - Copyright (c) 1997-2012 Sam Lantinga et al. - LGPLv2.1 or later
+libsdl - Copyright (c) 1997-2014 Sam Lantinga et al. - LGPLv2.1 or later
 libshout - Copyright (c) 2012 - LGPLv2.1 or later
 libtheora - Copyright (c) Xiph.org Foundation - Xiph.org BSD license
 libtiff - Copyright (c) 1988-1997 Sam Leffler, (c) 1991-1997 Silicon Graphics,
@@ -60,23 +60,24 @@ libtiff - Copyright (c) 1988-1997 Sam Leffler, (c) 1991-1997 Silicon Graphics,
 libtwolame - Copyright (c) 2001-2004 Michael Cheng, (c) 2004-2006 The TwoLAME
    Project - LGPLv2.1 or later
 libupnp - Copyright (c) 2000-2003 Intel Corporation - 3-clause BSD License
-libvpx - Copyright (c) 2010, Google Inc. - 3-clause BSD License
-libxml2 - Copyright (c) 1998-2003 Daniel Veillard - MIT License
+libvpx - Copyright (c) 2010-2015, Google Inc. - 3-clause BSD License
+libxml2 - Copyright (c) 1998-2014 Daniel Veillard - MIT License
 lua - Copyright (c) 1994-2008 Lua.org, PUC-Rio. - MIT License
 Musepack decoder library - Copyright (c) 2005-2011, The Musepack Development
    Team - 3-clause BSD License
-OpenJPEG - Copyright (c) 2002-2012, Communcations and Remote Sensing
+OpenJPEG - Copyright (c) 2002-2014, Communcations and Remote Sensing
    Laboratory, UCL, Belgium - ISC License
-Opus - Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic, Jean-Marc Valin,
+Opus - Copyright 2001-2013 Xiph.Org, Skype Limited, Octasic, Jean-Marc Valin,
    Timothy B. Terriberry, CSIRO, Gregory Maxwell, Mark Borgerding,
    Erik de Castro Lopo - Xiph.org BSD License
 Sparkle — Andy Matuschak et al. - MIT License
-Speex, Speexdsp - Copyright (c) 1992-2008 Xiph.org Foundation, Jean-Marc Valin,
+Speex, Speexdsp - Copyright (c) 1992-2015 Xiph.org Foundation, Jean-Marc Valin,
    Analog Devices Inc. Commonwealth Scientific and Industrial Research
    Organisation, David Row, Jutta Degener, Carsten Bormann - 3-clause BSD
    License
 taglib - Copyright (c) 2004-2013 Scott Wheeler, et al. - LGPLv2.1 or later
-x264 - Copyright (c) 2004-2013 VideoLAN and authors - GPLv2 or later
+x264 - Copyright (c) 2004-2015 VideoLAN and authors - GPLv2 or later
+x265 - Copyright (c) 2004-2015 x265 project - GPLv2 or later
 Zapping VBI library - Copyright (c) 2000-2003 Michael H. Schimek, Iñaki García
    Etxebarria - LGPLv2.1 or later
 zlib - Copyright (c) 1995-2012 Jean-loup Gailly and Mark Adler - zlib license