Changes applied to the dvipng-1.17 tree as obtained from:
	http://mirror.ctan.org/dviware/dvipng/

Removed:
	configure
	config.h
	install-sh
	mkinstalldirs

Created Autoconf macro files ../m4/gs-device.m4 and ../m4/makeinfo.m4
	adapting code in aclocal.m4.

Copied these files to ../doc/:
	dvipng.1
	dvipng.texi
	install.texi
	macros.texi
	readme.texi
