Cleanup/binfolder



See merge request !160

Move all testing related scripts to subfolder testing

I introduced a regularization for the calculation of partial pressures.

This is necessary to fix a problem that occured in Taraneh's flumevegas3p3cni example

See merge request !154

Feature/intersect bboxtrees

Add the ability to bounding box trees to intersect with other bounding box trees.

Add a test in `dumux/common/boundingboxtree/` testing BBoxTree construction, pointIntersection, treeIntersection.

The result is a vector of `BoundingBoxIntersections`. They contain a first and a second element index
of the respective first and second boundingBoxTree and the corners in global coordinates of the intersection geometry.

This implements only intersection of 3D with 1D elements. However it is possible to add other geometries by implementing the `GeometryCollision` class for e.g. 2D with 1D elements or 3D with 2D elements.

Merging this branch would remove the dependency on `dune-grid-glue` in `dumux-multidimension`.
It is also a step towards better well models where wells are actually one-dimensional domains intersecting
with the bulk grid cells.

TODO

* [x] Better documentation

See merge request !146

[timemanager] Add possibility to set a custom maxTimeStepSize() in problem

* User can e.g. specify a maxTimeStepSize depending on episodeIdx in problem
* Might be useful for problems with initialisation period

See merge request !159

* User can e.g. specify a maxTimeStepSize depending on episodeIdx in problem
* Might be useful for problems with initialisation period

Add subfolders codeutil and doc

[plotmateriallaw] Remove superfluous checking warning

Now the values are checked directly and only finite values are passed to gnuplot

See merge request !158

* The 3p kr() requires different arguments as the 2p kr()
* Wrong vector was pushed back

Now the values are checked directly and only finite values are passed to gnuplot

Fix/multidomainreferencesolutions



See merge request !157

The reference solutions have been changed because of the previous commit (change pointers to shared pointers)

[multidomain][CHANGELOG.md] Fix segfault resulting from not using shared pointers for elements

I love shared pointers ...

See merge request !155

This is necessary to fix a problem that occured in Taraneh's flumevegas3p3cni example

Enforce support for C++-14

* This requires at least Dune 2.4.1.
* GCC 4.8 does not match this requirement

See merge request !151

* This requires at least Dune 2.4.1.
* GCC 4.8 does not match this requirement

[doc][*.opts] Update documentation of gstat

* in handbook and doxygen
* add hint in the opts file

See merge request !153

* in handbook and doxygen
* add hint in the opts file

Feature/gstat

Add gstat support a geostatistic library to generate random permeability and porosity fields.

See merge request !152

Add a FieldType enum that controls the field type we generate,
e.g. log10, scalar. Could be extended by e.g. tensor in the future.

* Remove EntityPointer deprecated in dune2.4
* Use range-based for loops over gridview
* Use std::vector instead of blockvector

The user can set the variable GSTAT_ROOT to the directory where
gstat is installed for cmake to search there first before the
default paths.

This is based on the existing version of gstatrandompermeabilityfield from dumux-devel.
It uses the better integration of gstat and should be able to not only generate permeability fields.

Fix/headercheck and constexpr



See merge request !149

Thanks Timo for the heads-up