Add a Heroku Button#8

Merged

gfosco merged 5 commits intoparse-community:masterfrom

mattcreager:bring-the-button

Feb 1, 2016

Commits on Jan 29, 2016

accept Mongo connection URI via the MONGOLAB_URI config var
Matt Creager
committed
add app.json
Matt Creager
committed
update Heroku deploy section in readme
Matt Creager
committed
add the Heroku Button
Matt Creager
committed

Commits on Jan 31, 2016

support additional config via env vars and button
Matt Creager
committed