Merge pull request #1 from italy-portugal/change-theme

merge theme changes
added screenshot and bumped for github-updater
fixed search
start moving theme to different repository
improved front-page and made it so only logged in users can use it.
Update front-page.php
cleaned up how courses are filtered.
changed search fields to pull from ACF directly
removed dependence of layout on data order
added Grunt, started work on data model in js
Merge branch 'master' into change-theme

Conflicts:
	doc/Notes.md