this method isn't used at all.
let's talk to Event::IcalRenderer directly.
refactor export_ical to an AC::Renderer.
extract Event::Cloner.
fix latitude validation

Previously allowed -180..180 instead of proper -90..90.
Merge pull request #256 from botandrose/extract_event_cloner

extract Event::Cloner
Merge pull request #257 from hynkle/latitude-validation

fix latitude validation
ruby 1.9.3 doesn't like a space in the stabby lambda.
Merge pull request #255 from botandrose/slim_down_event

iCal rendering cleanup
simplify Event#url normalization.
simplify Venue#url normalization.
extract duplication into UrlPrefixer.
Merge pull request #241 from botandrose/simplify_event_url_normalization

simplify Event#url normalization.
extract Venue::Geocoder from Venue.
refactor perform_geocoding to a cattr_accessor.
minor refactor.
extract some private methods in Venue::Geocoder.
rename Venue#geocode to Venue#geocode! to be explicit about destructiveness.
use guard clause in Venue::Geocoder#geocode.
simplify geolocation forcing.