Merge branch 'master' of github.com:optopus/optopus into dev
Added routes for new devices.

Added two new routes:
- get '/api/device/:serial' do
  Get all device information for a given serial number.
- get '/api/device/:serial/new' do
  Get unprovisioned information only for a given serial number.
Merge pull request #70 from optopus/add-new-device-api

Add new device api