Removed setup materials.
Removed spreadsheet materials.
Removed SQL materials.
Removed sample readme file.
 Edited for the uchicago workshop including typos and directory listings
Merge pull request #133 from jdblischak/2013-06-chicago

Removed materials that will not be used for 2013-06-chicago boot camp
fixed typos in shell Readme
Merge branch '2013-06-chicago' of https://github.com/swcarpentry/boot-camps into 2013-06-chicago