run consul on travis

fixes gh-6

src/main/bash/local_run_consul.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+consul agent -server -bootstrap-expect 1 -data-dir /tmp/consul -ui-dir `dirname $0`/../../../consul_ui

src/main/bash/travis_install_consul.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+CONSUL_VER="0.5.0_linux_amd64"
+# cleanup
+rm "${CONSUL_VER}.*"
+rm "consul"
+# install consul
+wget "https://dl.bintray.com/mitchellh/consul/${CONSUL_VER}.zip"
+unzip "${CONSUL_VER}.zip"
+# check
+./consul --version