Implement navigation in the Admin UI, Implement getting and updating configuration for apps
Move config functionality into the config API, write config API tests
Merge branch 'master' of https://github.com/CUL-DigitalServices/grasshopper-ui into adminUI
Admin UI: Adjust active page background-color in navigation list, restructure recursive functions to be more in line with others in the code, don't declare variable twice in student view index.js
Merge pull request #93 from bp323/adminUI

Awesome work! Verified and merging
Merge origin/master and fix conflicts