Need to distinguish the kicks in the timestep_limiter as some particles may be kicked anyway by the kick1 task.

Make the new task synchronize the particles hit by feedback and force them to recompute a time-step. Propagate the time-step upwards.

Make the minimal SPH scheme collect the minimal time-bin of the neighbours in the force and use this when setting the time-step size.

Moved Gizmo to GizmoMFV, and changed gizmo configuration option to gizmo-mfv. Made sure all unit tests compile again with gizmo-mfv.

Added reference result for interacting blast waves. Added 2D and 3D spherical vacuum expansion test. Disabled pathological particle configuration errors in GIZMO to make 3D vacuum test work.

When compiling with the iosthermal equation of state, read the constant thermal energy from the YAML file.

All gpart now find all of their interactions following correct boundary condition check in runner_do_grav_long_range()

Fixed the gravity bugs reported in #363. Need to find a good rebuild criterion for gravity-only runs.

Partially restored old time step criterion. Isolated flux limiter into a separate file and made it configurable. Removed some superfluous gravity variables.

Updated the hydrodstatic disc patch example to use a longer slab in z and the correct internal energy.

Disabled GIZMO particle steering for vacuum particles. Disabled warning messages for unphysical values and pathological configurations.

Implemented the changes in ls that prevent gizmo crashes in cases where the mesh is seriously distorted

Fixed wrong box size in 2D Sod shock that caused SHADOWFAX_SPH to crash. Added flag in const.h to enable or disable cell motion steering. Made sure cell centroids have all their coordinates initialized.

Fixed bug in 2D Voronoi algorithm. Sod shock now works (with fixed cells). Moved gradient and slope limiter defines for SHADOWFAX_SPH to const.h.

Cleaned up 1D Voronoi algorithm some more. Added SHADOWFAX_TOTAL_ENERGY flag and support for an isothermal EoS.