Typo (h should be b in 3a)
Added python solutions for coding exercises in chapters 2 and 3
removed ds store junk files
Updated gitignore to make it more mac and python friendly for commits
updates to exercises 5: cheese example
Merge pull request #5 from tansey/master

Added my python solutions to Chapters 2 and 3
Merge pull request #4 from tansey/patch-1

Typo (h should be b in 3a)
Merge remote-tracking branch 'upstream/master'

Add upstream changes from James Scott
add .eps files to gitignore
the framework for exercise 4, incomplete