install and configure Raven.js

[atherdon]

Is your feature request related to a problem? Please describe.
we can start from installing this module to fetch.
at our loopback servers we have a cool ulits.js file - we'll be able to use it.
https://github.com/GroceriStar/groceristar/blob/master/server/server.js#L22
ChickenKyiv/recipe-api-only@54fe297
https://github.com/ChickenKyiv/recipe-api-only/blob/master/server/middleware/raven.js
https://github.com/ChickenKyiv/recipe-api-only/blob/master/bin/0005-config.js

will add more details later.

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