Update comments in the configuration templates
(spelling errors).

Update auto generated (by confetti) cfg/prscfg.c.

Port tarantool to ObjectiveC.
Implement basic TNTException class and
 TNTFiberException and TNTBoxException subclasses.
Replace longjmp/setjmp with ObjectiveC exceptions.

mod/box: Restructurize request processing in the following way:

	try
		begin
		dispatch
		commit
	catch
		abort

where any error during request processing generate an exception.

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.

Generalize CMake build scripts to be able to
easily add new modules (such as box or feeder).
Move prscfg.{h,c} (confetti general library and
header) from third_party/confetti/ to cfg/ to
simplify the build.
Update configuration file templates and parsing
code to use the new confetti.
Rename cfg/tarantool_cfg.h to cfg/warning.h,
to be able to reuse it in warning.c.
Update tests.

Note: tarantool_feeder is now built in mod/feeder;
tarantool_silverbox is built in mod/silverbox.
Modify .gitignore accordingly.

Addition of required configuration file options broke backward compatibility
(https://bugs.launchpad.net/bugs/708685)

Use the new version of confetti that allows to determine whether array element
is initialized.

Use CMake to:
- Compile tarantool_silverbox, tarantool_feeder.
- enable ./test-run testing out-of-source
- implement Debug/Release configurations
- add ENABLE_BACKTRACE ENABLE_TRACE and HAVE_BFD switches
- support auto-generated targets

	add chkconfig
	add 'reload configuration' command for admin console

	* build tree indexes after full loading
	* save in tree index parsed key (not only tuple)
	* lexicographical order in tree

        allow update of idexed fields
        allow non-contiguous index keys