added a lessons learned file from the manchester boot camp - i.e. I think the material needs a complete re-write so it is

1. useful to a advanced beginner (these are PhD students not School kids !!!)
2. useful to an advanced scripter - additional resources and advanced excercises included
3. (probably most important) has a motivating scientific example - cover data collection, data staging, analysis, results, (maybe something on referincing or how shell can help)
4. Cheat sheet could just be an intro / cover background for the advanced user - anyway please see the lessons_learned/lessons_learned.txt for more info