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/views/conference/_program.html.haml

@@ -1,36 +1,34 @@
-= content_for :splash_nav do
-  %li
-    =link_to('#program', class: 'smoothscroll') do
-      Program
-
 .container
   .row
-    .col-md-12.text-center
-      %h1 Program
-    - if @conference.splashpage and @conference.splashpage.include_tracks
-      .row
-        .col-md-12
-          - @conference.tracks.each do |t|
-            .tracks{ class: (@conference.tracks.count.to_i <= 2 ? "col-md-#{12/@conference.tracks.count.to_i}" : "col-md-4") }
-              %h4.text-center
-                = t.name
-              %p
-                = markdown(t.description)
-    - if @conference.call_for_papers and @conference.call_for_papers.schedule_public
-      .row
-        .col-md-12
-          %p.text-center
-            Check out our
-            = link_to 'Schedule', conference_schedule_path(@conference.short_title)
-    - if !@keynote_speakers.blank?
-      %div.row.text-center
-        %div.col-md-12
-          %h3 Keynote Speakers
-        - @keynote_speakers.each do |k|
-          %div{ class: (@keynote_speakers.count.to_i <= 2 ? "col-md-#{12/@keynote_speakers.count.to_i}" : "col-md-4") }
-            = image_tag(k.gravatar_url(size: '80'), class: 'img-circle') unless k.gravatar_url.blank?
-            %h4
-              = k.name
-            -unless k.biography.blank?
-              %p
-                = k.biography
+    .col-md-12
+      %h2.text-center
+        Program
+      %p.lead.text-center
+        = @conference.short_title
+        has the most awesome program ever!
+        - if @conference.splashpage and @conference.splashpage.include_tracks
+          See rock-star speakers cover the topics of
+      - if @conference.splashpage and @conference.splashpage.include_tracks
+        - @conference.tracks.each_slice(3) do |slice|
+          .row.row-centered
+            - slice.each do |track|
+              .col-md-4.col-centered.col-top.track
+                %h4.text-center
+                  = track.name
+                = markdown(track.description)
+
+  - if @conference.call_for_papers and @conference.call_for_papers.schedule_public
+    .row
+      .col-md-12
+        %p.cta-button.text-center
+          = link_to(conference_schedule_path(@conference.short_title), class: 'btn btn-default btn-lg') do
+            Full Schedule
+
+  - #FIXME: Display keynotes https://github.com/openSUSE/osem/issues/544 
+  - #FIXME: Display schedule highlights https://github.com/openSUSE/osem/issues/545
+
+
+  = content_for :splash_nav do
+    %li
+      =link_to('#program', class: 'smoothscroll') do
+        Program