#8 Basic implementation of exporting to iCal (.ics file)
Small fix for when guest tries to log out
Landing page created
#3 Basic group management (only lists groups so far)
#3 List groups, detailsview of groups (where users will be able to be added/removed/permissions given)
Merge branch 'school_management' into User_Management
#3 List groups from school
#15 Updated landing page, added login/register feature, added favicons
Merge branch 'frontend_implementation' into Development
Merge branch 'User_Management' into Development
#3 Created/fixed filter query for determining if a user is not in a group but is part of a school (#queriesAreHard)
Merge branch 'user_management' into Development

Conflicts:
	app/controllers/UserController.php
#3 Hide dropdownmenu when no users can be added to a group
Revert "#3 Hide dropdownmenu when no users can be added to a group"

This reverts commit 79ccb8c38146bbaac66feff8964ea022a338d09e.
#3 Hide dropdownmenu when no users can be added to a group
Hooked landingpage to backoffice
Added SuperAdmin API
Offset endtime on null value
#10 Calendar and event bug fixing
#10 Super minor bug-fix (spaces cause bugs)