remove hardcoded gid

some spreadsheets have different gids, so do not hardcode it

example url:

https://docs.google.com/a/kowalski.gd/spreadsheet/ccc?key=0AqTI4yNHbPV6dDYtZ3NEeEVEbGxGS3FwamhwbGxhcXc&usp=drive_web#gid=0