Merge branch 'master' into gh-pages
PL Added 4/4-4/11 data

(Dario had downloaded the data and put in in the intermediate
spreadsheet. PL just copied over)
Merge remote-tracking branch 'origin/master' into gh-pages
pricetracker data update

PL added 4/14 to 4/17
Merge remote-tracking branch 'origin/gh-pages'