Update comments in the configuration templates
(spelling errors).

Define what field data is.

Rename 'silverbox' to 'box', across the board.
Delete the remnants of the old build system
(scripts/rules.mk and scripts/config-def.mk).

Do not touch client/perl for now, since it's maintained
elsewhere.

Document the coding style in use. Quote Linux Kernel
coding style as the basis. Add Tarantool-specific
extensions.

Specify the type of op_code parameter of UPDATE
operation.

Implement a basic SQL parser.

Implement SQL statements: INSERT, UPDATE, DELETE,
PING.

Add a test case that tests INSERT/SELECT/DELETE.

Other changes:

Remove support for result-prefix from admin.py
Rename admin.py to tarantool (tarantool client).
Add readline support to tarantool client.
Make sql.g and sql.py independent from yapps
Add gdb support to ./test-run
Disable all optimizations when compiling with DEBUG.
Fix a few bugs discovered by trial and error in silverbox
protocol description.
Add automatic reconnection in case of server disconnect
to test connections. This is used to automatically
reconnect to the server after server restart or reinstall.
Implement soft and hard (with and without removal of vardir)
server restart.
Make show.test results independent from other tests (data I/O
skews statistics, and there is no way to reset it without
restarting the server).
Add  TCP_NODELAY to fiber sockets.

Update silverbox protocol description to use BNF.
Add more comments.
Explain semantics of protocol fields and restrictions
on field content.

Update silverbox protocol description to use BNF.
Add more comments.
Explain semantics of protocol fields and restrictions
on field content.