Merge pull request #43 from johnkabler/master

bug fix in euler 8
starting point for optional hw
start.R is a better name for starter files
Update 

Removing Buffer
fill out structure for more R exercises
Updating to class 2 repository
nicer (?) output format
updated monty hall code
add dataset research to new folder
JohnK Monty Hall sim
add monty hall, euler 8, and app presentation
andrews monty hall simulation
taking out print statements
updating results printing
Reading in the string for Euler-8
tom's vesion of monty_hall
code cleanup
added optional data visualization
added my crack at euler problem 8
okay here is my file on guinea pig tooth growth.. sounds kinda cute