fix #7465 - NullPointerException in WayConnectedToArea due to Way w/ 0 nodes



git-svn-id: http://josm.openstreetmap.de/svn/trunk@6400 0c6e7542-c601-0410-84e7-c038aed88b3b
see #6381 - Ask for source tag in changeset/upload



git-svn-id: http://josm.openstreetmap.de/svn/trunk@6401 0c6e7542-c601-0410-84e7-c038aed88b3b
fix #8434 - improve arrangement of additional information for monitoring_station preset - patch by skyper



git-svn-id: http://josm.openstreetmap.de/svn/trunk@6402 0c6e7542-c601-0410-84e7-c038aed88b3b