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

app/assets/javascripts/application.js

@@ -28,11 +28,11 @@
 //= require to-markdown
 //= require markdown
 //= require moment
+//= require leaflet
 //= require bootstrap-datetimepicker
 //= require osem-datepickers
 //= require osem-datatables
 //= require osem-tickets
-//= require osem-splash
 
 $(document).ready(function() {
     $('a[disabled=disabled]').click(function(event){