Update dev dependencies

[chadxz]

This patch updates all outdated development dependencies, but does
not upgrade the two outdated production dependencies.

• swagger-client, which is currently pinned at 2.1.17 due to a
  breaking change that is difficult to address (see Remove shrinkwrap, lock swagger, and major update to WS #47 for details).
• bluebird, which currently has a major version upgrade available
  that includes breaking changes. See
  http://bluebirdjs.com/docs/new-in-bluebird-3.html for details.
  These are workable changes for node-ari-client, but we expose
  bluebird Promises on our public API, so updating this would require
  a major version bump.

For changes in the development dependencies, see the following
changelog entries:

• grunt: http://gruntjs.com/blog/2016-04-04-grunt-1.0.0-released
• async: https://github.com/caolan/async/blob/master/CHANGELOG.md
• mocha: https://github.com/mochajs/mocha/blob/master/CHANGELOG.md
• mustache: https://github.com/janl/mustache.js/blob/master/CHANGELOG.md
• portfinder: Don't allow yielding of a port that is in use on a different interface http-party/node-portfinder#20

No details regarding the major version bump of hock could be found,
but it had a substantial change to its public api. Namely, it does not
handle any of the actual http server stuff for you anymore. Changes
are included in this PR to adapt the tests to this new api.

There are still some npm install warnings even after updating these
dependencies:

• jshint is throwing a warning about minimatch needing an upgrade.
  The fix for this is already in the jshint master branch, but no
  npm version has been cut for it yet. For additional details, see
  Update minimatch version jshint/jshint#2952
• jsdoc is throwing warnings about minimatch needing an upgrade,
  wrench being completely deprecated in favor of another library,
  and the marked package not being meant to be installed as a dep.
  Upon investigation, it seems that the jsdoc package has actually
  been abandoned, so we need to start thinking about migrating away
  from it. Ticket replace jsdoc with a non-abandoned project #55 has been opened to investigate this.
• grunt has a warning about coffee-script not being meant to be
  installed as a dep. This isn't really worth looking into, as we
  are gradually moving away from grunt anyway.

[chadxz]

this is gonna need some additional work. tests are failing... will have to follow up later, as i'm out of time for today. I think the problem is related to either hock or portfinder.

[chadxz]

got this fixed and ready to merge.

[chadxz]

ping, can someone take a look

[danjenkins]

👍