Merge: core-unmmap-after-fork and master.

.gitignore

CMakeLists.txt

README

cfg/CMakeLists.txt

cfg/prscfg.c

cfg/prscfg.h

cfg/tarantool_feeder_cfg.c

cfg/tarantool_feeder_cfg.h

cfg/tarantool_silverbox_cfg.c

cfg/tarantool_silverbox_cfg.cfg

cfg/tarantool_silverbox_cfg.h

cfg/warning.c

cfg/warning.h

core/CMakeLists.txt

core/admin.c

core/admin.rl

core/diagnostics.c

core/diagnostics.h

core/fiber.c

core/log_io.c