Merge pull request #118 from radonsky/minor_comment_cleanup

Minor comment cleanup
Fixing DST cutover bug in test cases
fixed typos in javadoc
incorporating feedback from pull request review
fix checkstyle issues
Merge pull request #119 from mgeis/dst-cutover-bug

Fixing DST cutover bug in test cases
Fixing instance selection bug caused by using DAYS
just a bit of style cleanup
Merge pull request #121 from mgeis/probability-bug

Probability bug