Suppress writing ECONNRESET to the log, this typically happens on client timeout.
Remove a piece of dead code.

Remove a piece of dead code which made select_range() and
select_reverse_range() extremely inefficient (a new iterator
instance for each tuple) and confusing.

box.index.iterator() creates a closure which is sufficient
to produce all iteration results. Use of index:next()
was apparently left by some tricky merge.
A go at trying to remove the performance regression in hash primary key access.

Inline tuple_field_old(), which avoids a function call
for field 0 access.
macosx: include malloc.h only under a linux
tp.h: rename leb128 to ber128
A hack to fix opentar-42 (mail.ru ticket).

What happened in production, during upgrade:
- logger option in the config file was pointing to nowhere
- the server would start, unable to check that the child logger
process died prematurely
- the server would fork spawner process to spawn replication relays
- a replica would come in, asking for data
- the spawner would successfully spawn a relay but die on SIGPIPE
when trying to write to the log (a pipe leading nowhere by now)
about the event
-> we have a master with a dead spawner process, no more replicas,
sorry.

Well, someone should check their configuraiton in the first place.
Nevertheless, try to be nice, and:

- don't die on SIGPIPE in the spawner process.
- when starting the logger, make an effort to check that it has started
successfully. There is no reliable way to find this out, so do
it with the best effort.
Merge branch 'stable' of github.com:tarantool/tarantool into stable
New Debian package (fix copyright, perldoc).
Extra options for dpkg-source (Debian).
Fixed memory leak in box.ipc.channel.
New Debian release (memory leak in box.ipc).
opentar-43: add connector/c demarshaling support for delete v1.3
rpm-start-activecheck: check for the active tarantool instance
before starting another one.
New debian package.
Fix build process on Debian/FreeBSD and BSD.

 * sys/prctl.h can be found only on Linux, but cmake recognizes Debian/kFreeBSD
 as Linux.
 * extern "C" for TIMEOUT_INFINITY (it is used in plugins)
New Debian snapshot.
Fix debian/rules clean section (cleanup CMake files).
Remove tarantool/config.h pointedly (Debian/BSD).
Drop BSD dependencies in Debian/kFreeBSD.
New Debian upload.