clean up the events spreadsheet
completed by: Mayank Madan
mentors: Lydia Pintscher
The spreadsheet at https://docs.google.com/spreadsheet/ccc?key=0Al1cWa29jR2idENyT2tPdVJVbEthRy14cjduZjVHcVE#gid=0 needs cleaning up. Please remove duplicate events and put things in the right columns and so on.