#6 Press any key... in -gui is a bad idea

[Baldvin Kovacs]

If mason-starter-gui is started from the menu of a
window-manager, then stdin/stdout/stderr is not visible
to the user. The "press enter to delete the web
application" should be handled more intelligently. For
example: when we reach the last page, from where there
is no step back, we should create a flag-file,
self-destroy in the temporary directory, and then send
a sighup to all mason-starter-gui processes. The
mason-starter-gui should sleep in a loop, and on wakeup
check for the existence of this flagfile, stopping
services and destroying the web application if found.