Move the automake "foreign" directive from bootstrap.sh to configure.ac (#765)

Fixes #764.

bootstrap.sh

@@ -49,6 +49,6 @@ set -x
 $libtoolize --copy --force --automake
 aclocal -I config
 autoheader
-automake --foreign --add-missing --copy
+automake --add-missing --copy
 autoconf
 rm -rf config.cache

configure.ac

@@ -34,7 +34,7 @@ AC_CONFIG_AUX_DIR(config)
 
 
 # Initialize the automake system
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([foreign])
 AM_MAINTAINER_MODE
 AM_CONFIG_HEADER(src/iperf_config.h)