trying to fix Travis build failure due to Bcrypt dependency https://www.serverpals.com/blog/installing-bcrypt-on-travis-ci-with-node-4.x
trying to fix Travis build failure due to Bcrypt dependency
https://www.serverpals.com/blog/installing-bcrypt-on-travis-ci-with-node-4.x

iris-dni/iris-frontend,iris-dni/iris-frontend,iris-dni/iris-frontend