The creation of folders was not clear and a bug could rename wrong
elements, which the user does not select.
Now connections and folders are handled in separat ways and the user can
add a new folder by pressing a button.
The fist connection uses the configured timeout of the revpi settings
object.
While the first connection, the user will see a connecting dialog, to
show we are alive and are working. The old behavior was a freezing UI.
Most events of the buttons was on pressed, which should not be used. Now
the debugcontrol buttons has a repeating pressed event, if you hold the
button, it will read the IOs every 200 ms. The shortcuts F4, F5, F6 to
read/write IOs are now application wide.
Start a complete new setting file with right naming. Import all old
saved connections from old settings file. Revolution Pi saved settings
are now in an own class with all properties and default values. All
modules are using this new setting class, which support the save
function.
