Adde watch script for sass/coffeescript files

watch.sh

+#!/usr/bin/env sh
+
+hash inotifywait || (echo "Install inotify-tools first"; exit 1)
+
+make
+
+while true; do
+    inotifywait --quiet --event attrib,modify *.sass *.coffee
+    sleep 0.05s
+    make
+done