Caused by the introduction of caching used in gnc_pricedb_nth_price,
when prices were deleted, the cached list was never updated and so the
tree model could reference a deleted price and hence crash. This also
affected adding prices as the new prices would not show due to the
cache not being updated. To fix this a function was added to reset the
cache when prices are updated from the model.
It is split into
- /libgnucash (for the non-gui bits)
- /gnucash (for the gui)
- /common (misc source files used by both)
- /bindings (currently only holds python bindings)
This is the first step in restructuring the code. It will need much
more fine tuning later on.