Because ActiveMQ uses std::auto_ptr, deprecated since C++11.

This leaks memory; apparently it has been an unsafe practice all
along. But support for ActiveMQ will be discontinued anyway.

and update documentation.

The "legacy" syntax is still tolerated, so a number after "track" is
skipped over. Also add a regression test in which the new syntax is
used, the old regression test is retained as a legacy test.

in vtim.c

Thilo Keber (thx Thilo)

VSLQ_Flush() vtx_force()s all incomplete transactions to be ready and calls
vslq_process_ready().

vslq_process_ready() retires vtxes until the callback returns with non zero,
so if our dispatch callback does return with an error, flushing will stop,
so we may end up with a non-empty ready list in vslq after calling flush
just once.

To ensure that we flushed everything and vtx_retire()d all vtxes
(which may contain refs to chunk_t_bufs living in malloc()ed memory),
we need to keep on flushing until we know the bowl is empty.

for missing timestamps

the VSL read rate

before calling VSL_Match()

API that use it to prune the tx tree)