"qsort implementation fails to sort arrays greater 4GB"

Bug#712447 "Valgrind reports use of not initialized memory
after 'reload configuration'

Bug#695689 "'save snapshot' does not report error when it occurs"

Bug#686411 "Possible data loss when renaming a snapshot"

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

Add a pre-recorded snapshot to the test coverage,
one that contains 500 records. Verify that we can start
from it.

Rename a test file to avoid shell escapes, align
a comment, modify ./test-run defaults to follow
the new build layout.

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.

Make a system specific check for MAP_ANONYMOUS
part of configuration process.
Follow up on a broken ENABLE_BACKTRACE switch
and fix a few cases which didn't compile with it.

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.

Specify the type of op_code parameter of UPDATE
operation.

Test runner: improve cleanup when installing a new server
(remove more old stuff).
Do not leave around a .reject file if there are valgrind
errors only (it's useless).

Update help messages, add comments, add more checks,
fix minor bugs.

Conflicts:
	test/lib/tarantool_silverbox_server.py
	test/lib/test_suite.py

A post-push fix for Bug#712456, use namespace_count
instead of nelem(namespace) to find out the number
of pre-allocated namespaces, 'namespace' is a pointer
after all.

Fix a bug in show fiber output (it's used
to not print out carriage return, and that
drove the test tool mad).

Conflicts:
	README

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