Improve logging on backend

[taoeffect]

Problem

• it's unclear how to log errors properly
• on travis it's too verbose
• needs colors

  Solution

• See official Hapi.js logging documentation
• investigate hapi plugins for better logging, like poop and good-console (see log rotation example)
• replace all calls to console.error / console.log with some decent library (the Good of Hapi? Winston?)

EDIT:

• See Pino and popular debug logging libraries, very fast
• bunyan was also recommended here and while it's not as fast as pino or debug, it's faster than winston

[danawoodman]

@taoeffect I'd like to take this on if that's ok. I would propose we use winston which we can hook up to any logging backend. Also, we can set log levels in our tests suites which would remove logs there (big win for test suite readability). Thoughts?

[taoeffect]

@danawoodman As this is not critical for getting the prototype out the door, let's put this off for a bit