Add unit tests.

Remove trailing spaces. Get rid of an unused method.

2. Refactor find_tests code
3. Rewrite and Add comment for chdir(base) (test_run.py:145)
4. Rewrite .gitignore file for new name of unit tests

Rename tarantool_pthread.h to tt_pthread.h

This is a pre-requisite for addition of Perl stored procedures.

Don't load corrupted tuples.

The patch which removes the CPack-generated spec
and adds a proper spec for client, server and library
was done by Dmitry Simonenko.

Hand-port the patch to the master, since it's gone too
far away from the origin and merging it ends up in a mess.

- write the docs
- remove unnecessary introduction of Perl
- properly implement, document and test box.fiber.wrap()
- rename box.find, explore alternatives (none)
- rewrite box.unpack('R') to reuse code and do
what's expected of it.

autogenerate version file which can be used
in case when there is no .git repository available within sources and
it is crucial to properly display current version.

https://bugs.launchpad.net/tarantool/+bug/1131108

Move third_party library compilation to the top level (less
directory traversal).
Provide an option for using system LibEIO/libobjc.

Enforce a naming convention for cmake/ scripts
(Find* and Build*).

Move ev and eio wrappers to third-party (todo: delete
them completely).

There is one (known) problem with this patch:
tarantool --version now prints incorrect compile flags.
To be fixed in a separate patch.

Move mod/box/ src/box. Fix broken packages.
Rename tarantool_cpack.cmake to cpack.cmake.

Make box.lua just one of the many files which can be
compiled into the server.

Fix lbox_tonumber64 to not truncate large Lua numbers (which
don't fit into 32 bit range).

Make box.fiber.id() work according to the docs.

Add rope implementation based on AVL trees.
Add unit tests.

Fix a regression with nested @finally not being
called, introduced in 1.4.7 release.

Big thanks to David Chisnall for a swift fix in GNUStep Objective C
runtime.

Add unit tests for two Objective C runtime properties:
nested finally handling and ability to catch C++ exceptions.

Update .gitignore. Don't use tarantool encoding unless it's
necessary.

Now that we have unit-testing framework, cherry-pick mhash
unit tests from branch feature-hash-test.

Extend queue.h with STAILQ_SPLICE and STAILQ_REVERSE.
Test the new functions in a simple unit testing framework.

Convert box.lua to box.lua.c and compile it in.
Fix broken out-of-source build of luajit, by adding
a few more generated files to touch-nocreate rule.

- add content
- speed up rebuild by keeping static stuff in www-data
- change the layout and stylesheet

Implement blueprint 'add-delete-fields':
https://blueprints.launchpad.net/tarantool/+spec/add-and-delete-fields-in-tuple

Make it possible to add new fields with UPDATE, and
delete existing fields.

Rewrite the UPDATE algorithm to pre-compute new tuple
length and do most of the work in place, without
allocating temporary buffer for fields.

Add Connector/C support for new UPDATE options.

Add and update tests.

Joint effort by Konstantin Shulgin (initial implementation),
Dmitry Simonenko (Connector/C) and
Konstantin Osipov (spec/code review).