Merge pull request #66 from JimHokanson/master

From J to M before PEP8 changes
Refactored EventFinder

* Renamed the module to "Events" reflecting the fact that it contains
not just the EventFinder class but also EventList
* Renamed "EventListForOutput" to "EventListWithFeatures" and
* Made EventListWithFeatures inherit from EventList
* Added a way to skip slow eccentricity calculation from user_config.py
Suppress more numpy runtime warnings
Starting work on stats
Adding more code to stats
Working on stats
Merge pull request #16 from openworm/master

From M to J