github access token support
This release brings better/more robust authentication mechanism - and introduce github access token support.
See more from README / #209 about new authenticator..
New
#209 replace custom authentication module with passport.js
Other changes
#212 promisify User model
#213 fix mongorestore step in CI
#215 Greenkeeper/eslint plugin chai expect 2.0.1
#216 Greenkeeper/mongoose 5.3.4
#217 fix github login when user does not belong to admin group