Configure server cache time from the command line (--cached-time) #901 / Also implement cache time for the Web server mode

Docker build can't install packages

Need to initialize the apt repos with `apt-get update`. Since you're maintaining your own install script and not installing cleanly here, we should break the system apart so that we're clearing the apt cache properly.

Implementation issue #878 ok for the curses interface. To be done in the WebUI and code should be optimized

[WebUI] Remove uglify of js files

[Web UI] display ongoing alert counter in favicon