Martin Bauer authored Dec 27, 2016 and Martin Bauer committed Feb 09, 2017

- all functions of these components tested & documented
- various fixes
  - cuda tests only run if pycuda available
  - added missing dependencies to Dockerfile

- version with weights in the entropy denominator

- possbility for custom ast nodes (debugging)
- support for fields in boundary condition

- boundary handling more flexible now: boundaries return LIST of equations now
- new pressure boundary

and not as a string.
Changed name of the file TypedSymbol to types.
Fixed usage of dtype accordingly, however i might not have found every
usage of dtype.

- new waLBerla only benchmark

- wrote a new, separate lattice model for cumulants
- tested with 2D LDC

- new testcase & notebook for simplifications