Improve and refactor 06_vanNH-nowPlaying.rmd
Update README.md
Raise warning if pull not explicitly coded and if assist is explicitly coded
Set team factor levels explicitly, so “now playing” makes sense even with very little data, e.g. events by only one team
Re-process 2014-05-31_vanNH-at-seaRM
Init 2014-06-07_seaRM-at-vanNH