Adding notes on using Grunt and Live editing in the browser

git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@311578 66ffb92e-73f9-0310-93c1-f5514f145a0a
Adding a toggle script for footer technical info and server time

git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@311579 66ffb92e-73f9-0310-93c1-f5514f145a0a
Adding a styleing and a toggle for footer technical info and server time

git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@311580 66ffb92e-73f9-0310-93c1-f5514f145a0a