Playing with WP-API and Angular.js

Made example controller to print out post names.
Check for required plugin

Adds a check for the Json API plugin to avoid breakage if it fails.
Also cancels load of angular if the plugin isn't active
Merge pull request #1 from jdcauley/patch-1

Check for required plugin in scripts
Start home page prototype.

Should have committed and merged a while ago.
Merge branch 'angular-sandbox'
Fix function testing for WP-API in scripts file