merge from problem-list branch

git-svn-id: http://svn.mkgmap.org.uk/splitter/trunk@278 838fabe5-b1a8-4b81-9896-7a84386980e9
removed unused sources

git-svn-id: http://svn.mkgmap.org.uk/splitter/trunk@279 838fabe5-b1a8-4b81-9896-7a84386980e9
Fix NPE that could occur when a way of a problem multipolygon relation was found, but no point.

git-svn-id: http://svn.mkgmap.org.uk/splitter/trunk@281 838fabe5-b1a8-4b81-9896-7a84386980e9