geos-3.11.1-bp155.1.6

- Update to version 3.11.1:
  * Remove spurious version from --libs geos-config options
  * Fix PreparedGeometry to avoid crashes with EMPTY elements in input (GH-678, Martin Davis)
  * Fix LineSegment.orientationIndex(LineSegment) (GH-699, Martin Davis)
  * Fix DepthSegment comparison operation (GH-707, Martin Davis)
  * Add OverlayNG support for simple GeometryCollection inputs (GH-716, Martin Davis)
  * Fix TopologyPreservingSimplifier to produce stable results for Multi inputs (GH-718)
  * Fix WKB hex endian test (GH-720, Paul Ramsey)
  * Improve ConvexHull radial sort robustness (GH-724, Martin Davis)
  * Use more robust Delaunay Triangulation frame size heuristic (GH-728, Martin Davis)

- update to 3.11.0:
  - OffsetCurve
  - ConcaveHull
  - PolygonHull
  - LineMerger directed option
  - CAPI: GEOSHilbertCode
  - CAPI: GEOSGeom_createRectangle
  - CAPI: GEOSGeom_transformXY
  - CAPI: GEOSRemoveRepeatedPoints
  - CAPI: GEOSLineMergeDirected
  - CAPI: setFixStructure for WKB/WKT readers to automatically repair
    structural errors in the input
  - Fix unaryUnion to avoid segfault with empty polygon
  - Fix SnapRoundingNoder to use tolerance in noding; also fixes GeometryPrecisionReducer
  - Allow direct setting of grid size
  - Allow GEOS to be used as a CMake subproject
  - Remove .inl inline files in favour of header declaration
  - Add SnappingNoder seeding
  - Add OverlayNG area check heuristic
  - Fix RelateOp
  - Fix IsValidOp to handle repeated node points
  - Fix IsSimpleOp to handle closed LineStrings with repeated endpoints
  - Fix LengthIndexedLine
  - Fix PolygonHoleJoiner
  - Improve `test_geos_unit` application error checking and reporting
  - Fix MinimumDiameter getMinimumRectangle for flat input
  - Fix BufferOp inverted ring check
  - Fix OverlayNG geomunion to avoid lines in result

- Rectify conflict dependencies (shlib transition from Nov 9 2015)
  against old geos.
- Update to release 3.10.3
  * VoronoiDiagramBuilder::setSites(const CoordinateSequence&)
    returns sorted output now
  * Add SnappingNoder seeding
  * Fix segfault in Hausdorff distance with empty geometries
  * Fix inf loop in PolygonTriangulator
  * Fix IsValidOp to handle repeated node points
  * Fix IsSimpleOp to handle closed LineStrings with repeated
    endpoints
  * Fix crash in GeometryNoder on empty input

- Update to version 3.10.2:
  * Fix crash in MonotoneChain with empty CoordinateSequence (GH-539, Sandro Santilli)
  * Fix crash in GeoJSONWriter in case of empty points (TRAC-1139, Paul Ramsey)
  * Improve BuildArea performance (TRAC-1122, Sandro Santilli)
  * Fix unaryUnion to avoid segfault with empty polygon (GH-501, Mike Taves)
  * Fix memory leak on exception in prepared geometry (GH-506, Dan Baston)
  * Iterator invalidation in rare cases (GH-508, Momtchil Momtchev)
  * Infinite loop on collapsed input to MaximumInscribedCircle (Paul Ramsey)
  * Write LinearRing to GeoJSON as LineString (TRAC-1140, Paul Ramsey)
  * Fix PolygonEarClipper to handle collapsed corners (GH-526, Martin Davis)
  * Fix GEOSSTRtree_remove for empty tree (GH-544, Dan Baston)
  * Fix crash on query of STRtree with removed items (GH-545, Dan Baston)

- Update to version 3.10.1:
  * Fix mistake in constants used to select WKB flavor in C API (GH489, Paul Ramsey)
  * Fix crash when reducing precision on a LinearRing (#1135, Paul Ramsey)
  * Fix GeoJSON crash on invalid input (GH498, Even Rouault)
  * Use std::sqrt exclusively for Solaris build (Paul Ramsey)
  * Fix mistaken version numbers in some parts of 3.10.0 (Paul Ramsey)
- Changes for version 3.10.0:
  * Preserve ordering of lines in overlay results (Martin Davis)
  * Check for invalid geometry before fixing polygonal result in Densifier
    and DPSimplifier (Martin Davis)
  * Fix overlay handling of flat interior lines (JTS-685, Martin Davis)
  * Fix IsValidOp to correctly report invalid nested MultiPolygons (#1112, Martin Davis)
  * Fix BufferOp to avoid artifacts in certain polygon buffers (#1101, Martin Davis)
  * Fix IsValidOp to correctly report certain kinds of invalid LinearRings (Martin Davis)
  * Improve STRtree performance through TemplateSTRtree implementation (Daniel Baston)
  * Fix DiscreteFrechetDistance to use initial points of input lines (#1128, Martin Davis)
  * Autoconf build system is dropped in favour of CMake
    See README.md and INSTALL.md for examples of usage
  * Libtool is no longer used for in favour of CMake
    Therefor libgeos.la is no longer built/installed
  * #1094, #1090: Drop inlines.cpp to address duplicate symbols on many platforms
    (Regina Obe)
  * GH475: Do not return NaN from GEOSProjectNormalized_r (Paul Ramsey)
  * GH442: BufferOp now returns unique_ptr<Geometry> result (Paul Ramsey)
- Drop geos-config.1
- Update project and download URL