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.

https://bugs.launchpad.net/tarantool/+bug/837484

This reverts commit 8dc70aac.

This patch introduces wal_mode configuration variable,
which can take either "fsync" or "fsync_delay" values.

In "fsync" mode, we open the write ahead log in O_SYNC
mode, and thus sync every write to disk.

Th fsync_delay mode is the backward-compatible mode:
in this mode, we only do fsync once every fsync_delay
seconds. If fsync_delay is 0, there is no fsync.

Otherwise, this patch is only adding auxiliary headers,
object files, etc.

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

- removed SIGUSR2 forwarding
- removed logger and pid command line arguments
- moved man pages generation to doc/man/
- added logger_pid to show info output
- changed instance config preformating scheme

- release_disabled test suite ini file option support
- debug build only error-injection test, cmake build cleaner output
- tarantool server version output with build flags

installation pathes.

(https://blueprints.launchpad.net/tarantool/+spec/compile-with-external-luajit)

CMAKE_LOCALSTATE_DIR options added. Configuration file search path is changed to
${CMAKE_SYSCONF_DIR}/tarantool.cfg.

path changed

output to user specified buffers

connector/c/tnt: main client library
connector/c/tntsql: sql parser library
connector/c/tntnet: network io library
test/connector_c: test suite for connector/c libraries