Removed some FontAwesome stuff, because most of the stuff isn't needed anyway
Minor changes, small additions

General:
Changed hardcoded things (current user and current round) to actual values
Changed some folder and file names, so everything is a bit more consistent

Controllers:
Added security_authorize() to check if someone is allowed to access that controller
Added some return messages to most functions. Still not completely done
Added some validation (checks and stuff). Also not completely done
Round start/end added. Skip person button works.

Split up the commits so small changes and stuff like that are separated from the bigger ones

Assets:
Moved some big pieces of JavaScript from templates to seperate JavaScript files (feedback.js and report.js)

Controllers:
Added the option to skip a person
Added a way for an admin to start and end a round
Added cookie login
Added security_logout(), so a user can actually log out now
Added some more constants

Views:
See changes for assets
Added templates for the round stuff (round creation, round overview)