[box] In elementsolution.hh use Dune::ReservedVector instead of...

Closes #989

See merge request !2479

[box] In elementsolution.hh use Dune::ReservedVector instead of Dune::Blockvector to have a fixed maximum size at compile time.

Feature/upwind interface

See merge request !2414

Fix/intersecting entities

See merge request !2274

Dennis Gläser authored Oct 02, 2020 and Timo Koch committed Feb 17, 2021

When checking geometric equality of 2d intersections, the order of the
corners of the raw entities cannot be guaranteed to be the same. Thus,
for geometric equality checks we have to compare against all corners.

Dennis Gläser authored Oct 02, 2020 and Timo Koch committed Feb 17, 2021

In case of 2d intersection geometries, the raw intersections can have
very large aspect ratios, i.e. they can have very short and much longer
edges. The current epsilon might be chosen based on a short edge, in
which case the identity of an intersection might not be found.

Merge branch '969-python-small-finite-volume-example-based-on-grid-geometry-abstraction' into 'master'

[python] Small finite volume example based on grid geometry abstraction

Closes #969

See merge request !2454

Follow change dune_python_add_test in dune-common

See merge request !2470

Stay compatible with 2.7 and 2.8.

[test] fix labels for Maxwell-Stefan tests

See merge request !2472

[test][1p][root] Remove dependency on UMFPack

See merge request !2467

[material][spline] Fix compiler error gcc

See merge request !2466