codam-web-greeter v1.3.0

• Student's Intra profile pictures now get downloaded to ~/.face on login (don't forget to update the back-end server for this to work)
• Added backlight control using the brightness keys on the keyboard or F1 & F2, also works on external monitors (requires ansible-codam-web-greeter >= v1.5.0)
• Fixed a bug where the old stylesheets weren't removed entirely when rebuilding the greeter theme (by @hazamashoken in #33)
• Removed checks for student group on systemd user services, they now run for all users except for lightdm, exam, checkin and event
• Added a debug mode that displays keycodes for pressed keys (activate with Ctrl+Alt+D, disabled on password inputs)
• Bumped dependencies

Full Changelog: v1.2.2...v1.3.0