move module related tests from test/box/ to test/module/.

This patch replaces box.tuple userdata with similar cdata.

Allow start of tarnatool_box in #! form.

Remove script_dir.

Make all configuration options optional (primary_port
was the last one required).
Make the configuration file itself optional.

If no watcher is started for the event loop, either based on
the config file settings, or in the #! script, do not start the event loop.

Update the test runner to take the new changes into account.

Fix a bug in symbols_load() when no symbols
could be loaded when path to executable was neither
relative nor absolute (but based on PATH).

Fix a bug with ignored return value of slab_arena_create()
in tuple.cc

In Lua, by definition, an array is something that
is indexed from 1 and doesn't have gaps in indexes.

This can be easily checked without serializer hints.

Tuple to YAML conversion should not go through a temporary
conversion to a Lua table in the future, so it should
also not be an argument for slowing things down.

This patch merges row_header and wal_row structures into new
log_row structures.

Move towards a uniform include scheme where header files are
stored along with the sources files, in the same directory.

We had to begin to use this scheme thanks to use of subprojects,
and a mix of two approaches turns the code base into a mess.

#104: -? as --help alias(also for tarancheck), -v -> -V, += number/string in description (need to patch gopt_help += 9 symbols)

Add forgotten test result.

This commit completely changes the data format used by Tarantool.
A new binary serialization format called MsgPack (http://msgpack.org)
has been introduced to store tuples, keys, request members, etc.
MsgPack supports various data types and hierarchical structures. Since
tuple & keys format has been changed, the binary protocol is no more
compatible with 1.5 clients.

The list of major changes:

 * Add MsgPack library and unit tests as a submodule
 * Add Lua bindings for the library and unit tests for it
 * Update IPROTO to use MsgPack for all kinds of requests
 * Change struct tuple to use MsgPack Array instead of BER-encoded fields
 * Remove fixed offsets from tuples (cannot be supported by MsgPack)
 * Replace const char *key, key_part pairs with MsgPack Arrays
 * Rework comparators and indicies to support MsgPack'ed fields
 * Merge NUM and NUM64 types into the one single type (NUM)
 * Rewrite box_lua.cc functions to support MsgPack instead of BER
 * Rewrite tuple_update to support MsgPack instead of BER
 * Totaly remove varint32 functions from all modules
 * Rework lua_tofield and YAML encoder to properly support Lua tables
 * Modifie bootstrap files and system spaces to use the new format
 * Add MsgPack support to the test system via msgpack-python
 * Update tests to use proper data types and remove unneeded box.packs

Tarantool 1.6 is the world's first MsgPack-based database!

Provide open_memstream() implementation for system which
miss it (Mac OS X).

 * 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)

 * 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)

Add comment.
Fix style.
Update tests.

for proper yaml null output. Fix test/box/socket test.

a binary stream. Fix box/cjson test.

fix end-of-document marker for multi documents return.

Add replace_if_exists as a stock method of a space.

Patch lua-yaml emitter to add \n after ---.

Integrate libyaml instead of internal yaml formaters.

changelog:
* fixed i64 convertion bug
* refactored bindings to new admin .info() scheme
* moved lua plugin api to separate file
* moved lua fiber api to separate file
* slab binding refactored
* added fiber lua bindings
* rewriten admin reply handler
* proper yaml end-of-document formater
* proper server error formater
* fixed bug with leftover data on stack on exception error
* added support of i64 types to lyyaml
* removed couple of box.show_ bindings
* console client fixes to support new scheme

This push has a yet broken test's.

Implementation of TreeIndex::reserve() had a bug when
tree.members weren't allocated while buildNext was already
using them.

Remove sptree_index_node magic and simplify sptree iterators.

                            </kostja>