add util/makedeb.sh

util/makedeb.sh

+#!/bin/bash
+set -e
+CWD=`pwd`
+rm -fr /tmp/build_gevent_deb
+set -x
+mkdir /tmp/build_gevent_deb
+util/makedist.py --dest /tmp/build_gevent_deb/gevent.tar.gz --version dev
+cd /tmp/build_gevent_deb
+tar -xf gevent.tar.gz
+fpm -s python -t deb gevent*/setup.py
+mkdir -p $CWD/build
+mv *.deb $CWD/build/