PEP-8: Convert tabs to 4x spaces
PEP-8: convert function names from camelCase, also add some todos to audit
Make a chart with pandas as well as cairoplot
Remove cairoplot and just use pandas
Copyright and version changes -- now MIT licensed (1.2)
Port to Python3
Remove extranneous use of float() due to Python3 new division
Rename averageApps and averageHappy and remove unhelpful comments
Refactor: use with statements on opening logfile
Refactor: enable_log instead of not dontLog
Refactor: Replace dict() with {} constructors
Refactor: check_apps and pick_from_specific_unsolved

5% or so speedup as a result from this one
Reimplement pick_most_common_bug as pick_from_most_common_by_feature

Seems to have been a serious logic error in it, so it's more than a
refactor.
Reimplement pick_most_popular_app as 2 pick_froms, cleanup