Fix signup validation. Emails, names and addresses are now much less strict, and more valid postcodes are allowed.

New UID generation system that uses the full year as a prefix. Should stop UIDs
from being reused.

Auto add users to printer when they sign up because I hate doign it manualy and it takes a long time to do it manualy and I make mistakes and peopel complain and stuff.

Port the printer shame script from the old site, rearrange the disk shame script (and rename it)
Also includes fixes made to the site during freshers week that haven't been committed yet

alomst finished signup system, all the logic is there, just need to be made to look nice and the deplyment TODOs followed

signup system now generates ldifs, and adds members to the mailing lists, dont forget to remove the dev mods before deploying

UI and validation for the new signup system, actual backend functionality is started but mostly missing