- remove compareTo() method from RoadDef and the Comparable attribute.
The sorting of RoadDef instances is done with a more complex method
in NETFile.sortRoads().
This might also prevent an NPE that occurs with JRE 8.



git-svn-id: http://svn.mkgmap.org.uk/mkgmap/trunk@3345 25d90789-57f7-4ee0-8453-03a3dfeeeb22