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

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

lib/docker_client.rb

@@ -82,7 +82,7 @@ class DockerClient
     Rails.logger.debug "Opening Websocket on URL " + socket_url
 
     socket.on :error do |event|
-      Rails.logger.info "Websocket error: " + event.message
+      Rails.logger.info "Websocket error: " + event.message.to_s
     end
     socket.on :close do |event|
       Rails.logger.info "Websocket closed."