Add tests for Geometry->normalize()

git-svn-id: http://svn.osgeo.org/geos/trunk@4006 5242fede-7e19-0410-aef8-94bd7d2200fb
Do not output duplicated vertices from QuadEdgeSubdivision class (#705)

Includes testcase

git-svn-id: http://svn.osgeo.org/geos/trunk@4007 5242fede-7e19-0410-aef8-94bd7d2200fb
Merge branch 'svn-trunk' into svn-trunk-fast-rect-intersection