SIGNUP-264 make column lengths consistent with rest of Sakai


git-svn-id: https://source.sakaiproject.org/svn/signup/trunk@309742 66ffb92e-73f9-0310-93c1-f5514f145a0a
SIGNUP-264 move calendar_event_id from 99 back to 2000


git-svn-id: https://source.sakaiproject.org/svn/signup/trunk@309744 66ffb92e-73f9-0310-93c1-f5514f145a0a