Change to a new DB server

1. Tis the day the WORKIT website moved to a new DB server, the shared MySQL server ... so we don't intrude on department MySQL server space. Requires a bit of recoding on my part to get the WORKIT website working with the new server.
   
2. Also, found that users can create duplicate entries with same username - that's a no-no. Need to fix this.
3. The Physics Machine Shop and I played phone tag today - we finally decided to meet on Thursday to finalize the hardware setup for the remaining baseline kits.