Prio 1 (for next version)
======



Prio 2 (for future versions)
======

scroll in dialog/menu / handle too small popup window
google pagespeed insights https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fwww.kneipenband.com%2Fwebbox%2F&tab=mobile
rename function
handle errors from http
gallery
chromecast
player
handle writability
register GET/POST functions
sandclock during operations
i18n
forward/back button