detect nodes with unneeded railway=crossing

[mkoniecz]

variant of #9245

" Any node with (((without foot access AND without bicycle access) OR (without railway=*)) AND (with railway=crossing)) should be reported as "highway=crossing is probably not needed here"."

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-11-09 02:35:12
Last Changed Author: Don-vip
Revision: 6381
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-11-08 14:41:01 +0100 (Fri, 08 Nov 2013)
Last Changed Rev: 6381

Identification: JOSM/1.5 (6381 en_GB) Windows 7 32-Bit
Memory Usage: 94 MB / 247 MB (31 MB allocated, but free)
Java version: 1.7.0_45, Oracle Corporation, Java HotSpot(TM) Client VM
Dataset consistency test: No problems found

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