 - Figure out why "make check" isn't using a :memory: database.
 - Fix outstanding problems revealed D-Bus test cases.
 - Remove useless copies from fts-python/.
 - Figure out why D-Bus test cases time out most of the time.
 - Make histogram extension more generic.
 - Write log output to a file.
 - Disable the benchmark extension by default.
 - Port the benchmarking tool from the bundled plot stuff to a standard module.
