[geos-devel] buffer bug fixed

[strk]

I've found and fixed a bug in BufferOp.
example.cpp runs work now fine on buffers.
There is an issue left with intersection,
where side location conflict TopologyException is raised.

Still we have no failures on .xml tests, apart from the
5 isValid tests also failing with JTS-1.4

Martin, could you provide any new-features .xml tests ?

--strk;