[josm_routing] fix #josm2475 - exclude irrelevant highway tags from routing graph, like `construction`

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29633 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_osmarenderer] Make plugin work under Windows with latest Java

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29635 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_osmarenderer] fix #josm6790 - osmarender plugin fails on null dataset

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29637 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_osmarender] fix #josm7870 - NPE with nodes without coordinates

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29638 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_osmarender] fix #josm5721 - Encode output files in UTF-8

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29639 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4