[autobuild] create m4/ before calling autoreconf
[autobuild] create m4/ before calling autoreconf

From: Stefan Bühler <stbuehler@web.de>

git-svn-id: c4e9838fefcfae554524937a357000afc2bbf25b@2917 152afb58-edef-0310-8abb-c4023f1b3aa9

lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,lighttpd/lighttpd1.4,ya1gaurav/lighttpd1.4,ya1gaurav/lighttpd1.4,kaleb-himes/lighttpd1.4,loganaden/lighttpd1.4,loganaden/lighttpd1.4,PatchyFog/lighttpd1.4-mbedtls,lighttpd/lighttpd1.4,Andrew-liu/lighttpd1.4,Andrew-liu/lighttpd1.4,ya1gaurav/lighttpd1.4,loganaden/lighttpd1.4,gstrauss/lighttpd1.4,kaleb-himes/lighttpd1.4,Andrew-liu/lighttpd1.4,PatchyFog/lighttpd1.4-mbedtls,PatchyFog/lighttpd1.4-mbedtls,gstrauss/lighttpd1.4,lighttpd/lighttpd1.4,HitoriSensei/lighttpd,PatchyFog/lighttpd1.4-mbedtls,loganaden/lighttpd1.4,Andrew-liu/lighttpd1.4,kaleb-himes/lighttpd1.4,lighttpd/lighttpd1.4,ya1gaurav/lighttpd1.4,PatchyFog/lighttpd1.4-mbedtls,kaleb-himes/lighttpd1.4,Andrew-liu/lighttpd1.4,HitoriSensei/lighttpd,kaleb-himes/lighttpd1.4,PatchyFog/lighttpd1.4-mbedtls,loganaden/lighttpd1.4,kaleb-himes/lighttpd1.4,ya1gaurav/lighttpd1.4,HitoriSensei/lighttpd,gstrauss/lighttpd1.4,Andrew-liu/lighttpd1.4,gstrauss/lighttpd1.4,ya1gaurav/lighttpd1.4,HitoriSensei/lighttpd,gstrauss/lighttpd1.4,HitoriSensei/lighttpd,loganaden/lighttpd1.4,gstrauss/lighttpd1.4,PatchyFog/lighttpd1.4-mbedtls