chore(package): update coveralls to version 2.11.16 (#791)
chore(package): update coveralls to version 2.11.16 (#791)

https://greenkeeper.io/
mozilla/web-ext,shubheksha/web-ext,kumar303/web-ext,kumar303/web-ext,mozilla/web-ext,rpl/web-ext,rpl/web-ext,shubheksha/web-ext