set routing mode to current application mode

Fix a)
https://groups.google.com/forum/#!msg/osmand/CU4VQvU7J2U/t4JiFn4tTpEJ
AKA jira 100.

After destination is reached, default application mode applies, I didn't change this.

I'm not sure, if we want to set application mode to default application mode in stopNavigationWithoutConfirm(), so I commented it out:
//settings.APPLICATION_MODE.set(settings.DEFAULT_APPLICATION_MODE.get());
But I'm not sure about that.

This line should stay, because it is important that we switch back to default application mode or please explain what is the intention.