All other functions should not have been exposed in the shared library but were: now fixed by mixing the visibility flag into CFLAGS.

slight changes to the API, updated the perl mods

see CHANGES

updated how the evolution is stopped in terminate_evolution: it now just sets stardata->evolving to FALSE so everything stops.

cleaned up buffered_printf also

fixed buffer_empty_buffer and clear_printf_buffer to set the buffer_alloced to zero (otherwise buffered_printf gets confused)

remove deprecated and unused miniz

no longer set J=0 for "single" systems which are very wide : this accidentally sent stars as single when they should just be very wide

rebuilt the buffered_printf code to simplify it and prevent (hopefully) the crashes that Alex Kemp finds.

added tmpstore->error_buffer to deal with errors separately,
this is handled correctly in binary_grid2 (v2.1.3+) so it
behaves just like previously and SYSTEM_ERROR is detected
correctly.

deprecated the printf_stack to remove a load of unusued code

extended the API to use the error_buffer through binary_c_error_buffer()

make disc_zone_crossing_radii work with disc_logging

lots of code cleanup,e.g. new disc_function_macros and changed
the disc code's function macros to use appropriate naming convention

Backport from izzard-discs: Fix bug in binary_c_string_macros.h where [0] should have been [1]. This prevented 0 from being detected as "false" in Boolean arguments.

* these now work very well with the events framework
* fixed thermohaline mixing with re-accretion
* cleaned up the star->nova states
* checked and fixed the timestepping
* fixed evolution difflog for new novae

clean up the nova code : removed debugging

turned off nova logging by default

when a nova goes off we set the surface layer and nova layer mass
to zero, on the assumption that any material left after the nova is
mixed with white dwarf material.

one could also argue that it would be hydrogen rich, but well,
who knows.... yet.

cleaned up the star->nova flag
added a new function to take into account angular momentum changes because of novae, this is the same function for the old and new codes
updated the difflog and the timestepping

fix derivative labels