Add ACLOCAL_AMFLAGS
build-essential
libtool, automake, autoconf
update readme
install m4
require gnulib
use autoreconf
more autoconf steps
import m4/*
update .travis ci config
update configure.ac with more configs
gcc test only for now
check in missing files
Add configure script
check-in install-sh
delete links
use automake with copy
Merge branch 'master' of github.com:c9s/r3

Conflicts:
	config.guess
	config.sub
	install-sh
check in Makefile.in
check in Makefile.in