refactored the writequad maxima script, it produces (apart from comments) the same files as before for jacobi rules and gauss lobatto rules

Guard against misuse of AxisAlignedCubeGeometry constructor

See merge request !150

The AxisAlignedCubeGeometry has always had a constructor that was always
intended to be used with dim==coorddim only.  However, this precondition
was never checked anywhere, which could lead to strange bugs.
This patch introduces a static_assert that fails at compile time
if the dim==coorddim precondition is not met.

BUG: core/dune-geometry#25

[axisalignedcubegeometry] Remove copy assignment operator

See merge request !149

* operator does the same as the default-generated one
* fixes compiler warning

Fetch default yml files via different project instead of url

See merge request !147

This is a workaround for a bug that showed up after gitlab migration. See issue
infrastructure/issues0#62 for further discussion.

Merge branch 'feature/require-cmake-3.13' into 'master'

See merge request [!145]

  [!145]: Nonecore/dune-geometry/merge_requests/145

Merge branch 'issue/intel_const_constexpr' into 'master'

ref:core/dune-geometry\>

### Summary

Solve an intel-compiler related error, by replacing const by constexpr for
template parameter variables.

See merge request [!142]

  [!142]: gitlab.dune-project.org/core/dune-geometry/merge_requests/142

Merge branch 'bugfix/MissingAppend' into 'master'

See merge request [!141]

  [!141]: Nonecore/dune-geometry/merge_requests/141

Merge branch 'feature/addPythonBindings' into 'master'

See merge request [!140]

  [!140]: Nonecore/dune-geometry/merge_requests/140

Python bindings, default is OFF.

Merge branch 'add_using_directives' into 'master'

ref:core/dune-geometry\> This MR adds using directives for the use of
std::sqrt or std::abs. This is needed because other names in the namespace
Dune are probably found before the names in the namespace std.

See merge request [!139]

  [!139]: gitlab.dune-project.org/core/dune-geometry/merge_requests/139

fixed some bugs

Merge branch 'feature/remove-deprecated' into 'master'

See merge request [!136]

  [!136]: Nonecore/dune-geometry/merge_requests/136

The according code was depreated in Dune 2.6

Code was deprecated in Dune 2.6