updated copyright for 2016
Updated copyright notice to 2015
Updated copyright notice to 2014
Updated copyright notice to 2013
Updated copyright notice to 2012
Updated copyright notice to 2011
updated year in copyright info
reverted .texi file and fixed Makefile.am the problem was actually not in the texi-file, but the Makefile.am. Reverted changes in the .texi and fixed it (hopefully) correctly now.
get "make distcheck" to work needed to add all *.h files to Makefile.am and also the bitmaps that are needed and some other files. Also had modified copyright.texi.
cleaned up some more copyright notices
Updated all files to GPL version 3.
changes from H.G. Muller; version 4.3.15
Generate the xboard man page (now covering cmail too) from the texinfo file. Add sounds/README. Add a small patch from Daniel Mehrmann. See ChangeLog for details.