Merged in GGP-50-pages-broken (pull request neo4j-examples#16)

GGP-50: pages-broken

Approved-by: Alisson Patricio <eu@alisson.net>
Approved-by: Cristina Escalante <ce@tsl.io>

app/views/graph_starter/assets/_admin_buttons.html.slim

@@ -16,13 +16,13 @@
 - if asset.persisted?
   .ui.divider
 
-  a.ui.labeled.icon.button href="#{graph_starter.edit_asset_path(id: asset.is_a?(GraphGist) ? @asset.id : @asset.graphgist.id)}"
+  a.ui.labeled.icon.button href="#{graph_starter.edit_asset_path(id: asset.is_a?(GraphGistCandidate) ? @asset.graphgist.id : @asset.id)}"
     i.edit.icon
     | Admin Edit
 
   .ui.divider
 
   .ui.buttons
-    a.ui.labeled.icon.red.button.right.floated href="#{graph_starter.destroy_asset_path(id: asset.is_a?(GraphGist) ? @asset.id : @asset.graphgist.id)}"
+    a.ui.labeled.icon.red.button.right.floated href="#{graph_starter.destroy_asset_path(id: asset.is_a?(GraphGistCandidate) ? @asset.graphgist.id : @asset.id)}"
       i.delete.icon
       | Delete