[josm_improvewayaccuracy] - Replace Java7 code by Java6 code (see #josm8465)

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29317 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_plugins] Update to jts 1.13 and GeoTools 8.7

git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29319 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4