2019.11.6.1

e4df013 Add basic antispam measure to contact form (#263)
a23b501 add facebook icon/link back to global footer (#262)
b6fcf2c Suggest using direnv to manage env vars (#259)
a866b8c Fix misaligned bus icon on Projects page (#260)
f4f4da3 Fall 2019 rating change test updates (#257)
df10bb2 Green line route switcher (#231)
4e95720 Fix two tests broken by winter ferry service changes (#255)