Added in a link to the numpy tutorial
Fixing a typo!
Added a sample config file with aliases
Updated version control notes
Added shell material.
Removed a in class demo folder from before.
fixed a typo.
fixed syntax error in code blocks
numbered exercises correctly
Added a messy-folder example
added short exercise 02
Adding in the link to the swcbristol etherpad
Merge branch '2013-09-bristol' of https://github.com/swcarpentry/boot-camps into 2013-09-bristol
Merge branch '2013-09-bristol' of https://github.com/swcarpentry/boot-camps into 2013-09-bristol