CRPropa 3.2.1

Bug fixes:

• Re-added ToroidalHaloField and LogarithmicSpiralField models. Note, that the class name was also corrected in spelling: TorroidalHaloField --> ToroidalHaloField
• Synchronized signature of ParticleSplitting constructor

New features:

• New candidate property tagOrigin to trace back which source or which interaction created the candidate
• New interface for massdistributions given on a Grid1f
• Grids can be restricted to the volume without repetition (clipVolume parameter)
• SourceFeature to sample the source position from a given massdistribution
• EBL model from Saldana-Lopez et al. 2021
• New module CandidateSplitting for better statistics at high energies for e.g. diffusive shock acceleration
• New advection fields for modeling diffusive shock acceleration at 1D planar, oblique and spherical shocks

Interface changes:

• Weight column in hdf-Output is now called "W", which is the same as for TextOutput.

Features that are deprecated and will be removed after this release

• ObserverPoint will be renamed into Observer1D.
• AMRMagneticField - underlying library (saga) is no longer supported.

Removed features

• External extensions DINT and Eleca, which can be replaced with the
  EM*-modules combined with the thinning option for reasonable computation
  times.

New plugins and resources linked on the webpages:

• FieldlineIntegrator
• grplinst
• monopole
• ROOTOutputPlugin