The distributions have been extended in various ways to permit usage in
a greater variety of situations...
The distributions now have write methods which allow a distribution to
be written into a field file for restart, therby permitting their usage
in boundary conditions and similar. Their read methods now also support
dimension-checked unit conversions for all their parameters.
An additional selector has been added that allows a distribution to be
re-constructed with a different sample size exponent.
The distributions now own their random generator, thereby simplifying
their usage and preventing the need for a (potentially dangling)
reference member. This makes sense now as the random generators do not
rely on global state; individual sub-models can and should own their own
random generator and manage its initialisation and restart. This
principle should be extended to other parts of the code in future.
e1e0e258c8