a number of UI and performance fixes:
- manually render autocomplete items
- change the way the addresses are written to address (venue name) so it works transparently with google maps.
- in cases where address and city are not available, use lat,lng (address venuename) so that maps works nicely
- add a warning that when editing existing events you must add a space (still can't figure out how to solve this)

- and also attribution to mitro and foursquare.
trivial build script.