Remove some extraneous comments and fix a spacing problem.
Added a version string (major, minor, revision).

Made it so that you can pass settings params when initializing the Confidence object.
Explained using the zScore setting in the README.
Use soft tabs instead of spaces. Hope you don't mind. If you do just decline the pull request and I'll make a new one with just my improvement.
Merge pull request #3 from pickhardt/master

Allow configuring settings when initializing the Confidence object.