add script update_website.sh to automatically pull, run jekyll and rsync to webserver

_contrib/update_website.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+REPO=git://github.com/bitcoin/bitcoin.org.git
+WORKDIR=/tmp/bitcoin.org/
+DESTDIR=/var/www/
+
+JEKYLL=/var/lib/gems/1.8/bin/jekyll
+
+if test ! -d $WORKDIR; then
+	git clone $REPO $WORKDIR	
+fi
+
+cd $WORKDIR
+
+git pull origin master
+
+git reset --hard
+
+git clean -x -f
+
+$JEKYLL
+
+rsync --delete -a $WORKDIR/_site/ $DESTDIR
+