made Server slightly less chatty
echo 'tmp/*' > .gitignore
server's disconnection not shown by default but by new Server.disconnect()
added Server.error() for printing errors in a position:fixed box
server_error now in hash rather than query
added QR code link, using chart.apis.google.com
added programme item voting, via Server.vote*()
fixed vote arrow CSS
added public vote display
more discreet collapsed vote indicator; set pub_votes before my_votes; bugfixes
bugfix
changed vote arrow colors
added iCal/.ics links
next view: clearer text, smarter time picker
program now sorted by date, time, location if necesary (e.g. for next by location)
added "Expand all" link if fewer than ko.expand_all_max_items items listed
cleanup
server: cb_my_prog data format changed
"expand all" bugfix
"doubleplusgood" arrow requires 2nd click on "good" arrow