Pyfr

New Features:
- Adaptive time-stepping
- Space-time dependent source terms
- Filtering
- More Riemann solvers
- Improved documentation

New Features:
- Mesh/solution re-partitioning
- Improved device selection for heterogeneous computing
- Improved documentation

New Features:
- Volume anti-aliasing
- Additional boundary conditions
- Improved documentation

New Features:
- Performance improvements
- Tetrahedra
- Prisms
- OpenCL backend