3 - Feed PrecisionModel to OverlayResultValidator to set _TOLERANCE
5 - Test unit tests for snapround package
7 - DoubleBits misregards BYTE_ENDIAN, must check it.
10 - include <geos/config.h> from all .cpp files
12 - WKB tester in doc/examples.cpp should do point-by-point comparison.
14 - Implement Safe's idea of a compile-time enabled 2d-only
15 inlineable CoordinateSequence
17 - WKB extension with LINEARRING ?
19 - Check how to disable GEOS_VERSION define on command line
20 (or make GEOS_VERSION define in version.h optional)
21 not a major problems, just makes the compiler issue some warninigs.
23 - Check GeometryEditor behaviour (modify passed geom or create a new one ?)
26 - Add distinct binary predicates test support in XMLTester