- fixed problem with new conda by using new compiler mechanism
- added test file that is checked before upload
- open mesh recipe fixed
- force downgrade for conda-build, new tested version(3.2.1) of conda-build leads to an empty
  package and then failing test.. perhaps it is fixed with newer conda-build versions?

Enable dynamic refinement for coupled LBM-PE simulations

See merge request walberla/walberla!73

Added discrete particle method coupling

See merge request walberla/walberla!72

Added a showcases folder

See merge request walberla/walberla!71

Add mesh module to waLberla

See merge request walberla/walberla!70

Pe coupling refinement fixes

See merge request walberla/walberla!67

[API]: changed pe coupling mapping functions interfaces, added new mapping functions, adapted test cases and benchmarks

Streamed GPUPackInfo

Closes #27

See merge request walberla/walberla!68

- one python file can now generate multiple source files

 lbmpy boundary handling works on pure flag fields, geometry setup
 classes could only set up boundary handling, not pure flag fields.