[BUGFIX] Jacobi codegen test case

See merge request walberla/walberla!278

drop support for images based on ubuntu 16.04

See merge request walberla/walberla!279

Some fixes in the MSHS benchmark case for parallel execution

See merge request walberla/walberla!280

Refactored the PDF reconstructor test to avoid duplication, extended it by periodicity test

See merge request walberla/walberla!281

accomodate naming in publications

See merge request walberla/walberla!276

Fluctuating MRT: introduce separate relaxation rates

See merge request walberla/walberla!275

for bulk modes, shear modes, even ghost modes, odd ghost modes

Extract core functionality from mesh module into a new module

See merge request walberla/walberla!271

Refactor pystencil integration

See merge request walberla/walberla!273

This new function does the actual generation using pystencils and creates a target library that can be used as a dependency as usual. One should not list the python script itself anymore in add_executable.
Convention: Use the AppName as a prefix for the generated lib!

Example Usage:

waLBerla_generate_target_from_python( NAME AppNameGeneratedLib FILE GenerateKernel.py OUT_FILES Kernel.h Kernel.cpp)

waLBerla_add_executable ( NAME AppNameGeneratedLibTest DEPENDS GeneratedLib)

Update references in documentation

See merge request walberla/walberla!269

Combined resolved/unresolved coupling methods showcase

See merge request walberla/walberla!264

since std::vector<bool> behaves differently to std::vector using bool
can cause troubles

Adapted paramater references in Split template

See merge request walberla/walberla!268

pystencils: Boundary generation for non-LB fields and for inner_or_boundary=False

Closes #111

See merge request walberla/walberla!266

pystencils_walberla: use type-safe getData instead of uncheckedFastGetData

Closes #110

See merge request walberla/walberla!261

pystencils: re-allow use of arbitrary field names in sweeps

See merge request walberla/walberla!267

Silence CMake FFTW3_MPI warning

See merge request walberla/walberla!265

Previously, anything that wasn’t velocity, src, src_tmp, pdfs, pdfs_tmp resulted in invalid code

This was a regression introduced in a1614152