Securing the secret service when running on a multi-tenant environment.

For example (check https://github.com/cloud66/habitus/blob/master/examples/security_env)

habitus -f examples/security_env/build.yml -d examples/security_env --secrets=true --authentication-secret-server=true --user-secret-server=habitus --password-secret-server=admin --binding=[your ip] --build habitus_host=[your ip] --build habitus_port=8080 --build habitus_password=admin --build habitus_user=habitus

Make sure you set the EnvVar

export HABITUS_HOME=my_secret

New params:

--authentication-secret-server=true (default is false)
--user-secret-server=xxx (default is habitus)
--user-secret-server=xxx (default is admin)

Also we removed bugsnag and use sentry to collecting crash data.