Another round of splash design

* Add map to splash
* Reverse venue<->conference relation
* Split venue address into fields
* Don't go through venue for lodgings anymore

spec/factories/lodgings.rb

@@ -5,6 +5,5 @@ FactoryGirl.define do
     name 'Example Hotel'
     description 'Lorem Ipsum Dolor'
     website_link 'http://www.example.com'
-    venue
   end
 end

spec/factories/venues.rb

@@ -2,7 +2,10 @@
 FactoryGirl.define do
   factory :venue do
     name 'Suse Office'
-    address 'Maxfeldstrasse 5 \n90409 Nuremberg'
+    street 'Maxfeldstrasse 5'
+    city 'Nuremberg'
+    postalcode '90489'
+    country 'DE'
     website 'www.opensuse.org'
     description 'Lorem Ipsum Dolor'
   end