fix #9366 - "highway without a reference" bug with motorways in validator (tagchecker)

git-svn-id: http://josm.openstreetmap.de/svn/trunk@6414 0c6e7542-c601-0410-84e7-c038aed88b3b
fix #9364 - service_times reported as "opening_hours - (...)" in validator

git-svn-id: http://josm.openstreetmap.de/svn/trunk@6415 0c6e7542-c601-0410-84e7-c038aed88b3b
fix #9363 - tagchecker: detect highway/railway=crossing on ways

git-svn-id: http://josm.openstreetmap.de/svn/trunk@6416 0c6e7542-c601-0410-84e7-c038aed88b3b
Merge branch 'master' into mirror