Hide stacktrace for non-existing properties

Still the path for the non-existing property will be logged. No reason
to include the stacktrace
Make in- and excludes a bit bigger
Merge branch 'master' of ssh://git@github.com/jutzig/jabylon.git

Conflicts:
	de.jutzig.jabylon.rest.ui/src/main/resources/de/jutzig/jabylon/rest/ui/wicket/config/sections/ScanningConfigSection.html
No clue what has changed, and why I need to commit this :(