Fixing the link problem with thinkbayes2.py
Fixing ProbLess
Fixing Pmf.Max
Merge branch 'master' of https://github.com/AllenDowney/ThinkBayes2
Adding cookie3.py
Updating init for _DictWrapper and Cdf
Updating cookie3.py
Merge branch 'master' of https://github.com/AllenDowney/ThinkBayes2

Conflicts:
	code/cookie3.py
Classwork on 9/15