Use sync_interval from dir for memtx wal/snapshot. Issue #1720
Use sync_interval from dir for memtx wal/snapshot. Issue #1720

rtsisyk/tarantool,mejedi/tarantool,rtsisyk/tarantool,rtsisyk/tarantool,rtsisyk/tarantool,mejedi/tarantool,mejedi/tarantool,mejedi/tarantool