Update Turbolinks, load additional assets only on request, fix JS

Signed-off-by: Sebastian Serth <Sebastian.Serth@student.hpi.de>

config/initializers/assets.rb

@@ -5,6 +5,17 @@ Rails.application.config.tap do |config|
   # Version of your assets, change this if you want to expire all your assets.
   config.assets.version = '1.0'
 
+  # vis.js
+  config.assets.precompile += %w( vis.min.js )
+  config.assets.precompile += %w( vis.min.css )
+
+  # Highlight.js
+  config.assets.precompile += %w( highlight.min.js )
+  config.assets.precompile += %w( highlight-default.min.css )
+
+  # d3.tip
+  config.assets.precompile += %w( d3-tip.js )
+
   # Add additional assets to the asset load path.
   # config.assets.paths << Emoji.images_path
   # Add Yarn node_modules folder to the asset load path.