[test] Add intersection test for 1-3d boxes
[rescale] avoid rescaling boxes (as long as box_tag derives from areal_tag)
Merge branch 'develop' of github.com:boostorg/geometry into develop
[get_turns] Add template parameters to side_calculator<> defining types of all points.

It is possible to use side_calculator<> with Points of various types without the conversion.
Merge branch 'develop' of github.com:boostorg/geometry into develop
[views][relate] Add detail::normalized_view<> and use it in relate_linear_areal.

It's a view connecting reversible_view and closeable_view, allowing to view a subrange of a Geometry as reversed and/or closed if necessary.
Polygons and similar Geometries are always CW, closed.
[relate] refactor relate helpers.

Remove unused, commented-out code.
Improve the names.
[test][sectionalize] Fix GCC4.4 compilation error.

Explicitly use namespace geometry in sectionalize() overload used in the test.
Replaced #ifdef with extra parenthesis to solve macro/comma problems
Merge branch 'develop' of github.com:boostorg/geometry into develop
[policies][robustness] properly initialize m_approximation in default segment_ratio constructor
[turns] rename less functor from less_seg_dist_other_op to less_seg_fraction_other_op (to indicate that the fraction comparison is now used)
[test][set ops] separate tests with multiple points as different test cases
[test][set ops] separate test with duplicate points as different test cases; add test cases with spikes;
Merge pull request #19 from mkaravel/develop

[policies][robustness] properly initialize m_approximation in default segment_ratio constructor
[get_turns] Fix turns generation for double collinear spikes.

Add check if a spike Point is realy an IP.
Merge branch 'develop' of github.com:boostorg/geometry into develop
[is_valid] implementation of OGC's is_valid for pointlike and linear geometries; moved unit tests to test/algorithms/ogc directory;
Merge branch 'develop' of https://github.com/boostorg/geometry into feature/is_simple
[get_turns][extensions/dissolve] Fix VS compilation error (STATIC_ASSERT + template). Add not_implemented<> info to extensions/dissolve.