Add common-use columns
Add common-use columns

Improves the index page for attendees by adding several new columns and
keeping each column its own unique data type.

md1024/rams,magfest/ubersystem,migetman9/ubersystem,magfest/ubersystem,magfest/ubersystem,RAMSProject/rams,magfest/ubersystem,md1024/rams,RAMSProject/rams,md1024/rams,migetman9/ubersystem,RAMSProject/rams,migetman9/ubersystem