Travis environment variable

[jema28]

What's happening in these three lines? https://github.com/fac-14/Vent-Bot/blob/master/src/controllers/routes/message.js#L1-L3

[developess]

Basically, we need to require env2 and specify the config file when running locally, but we don't want that happening in travis or in production (environment variables are set in other ways for them) so we have the environment variable TRAVIS on heroku and travis so that code doesn't run in production. We could have done the opposite logic which might have made more sense.