Merge branch 'master' of https://github.com/tarantool/tarantool

src/CMakeLists.txt

src/box/CMakeLists.txt

src/box/engine_memtx.cc

src/box/engine_sophia.cc

src/box/index.cc

src/box/index.h

src/box/iproto.cc

src/box/key_def.cc

src/box/key_def.h

src/box/lua/call.cc

src/box/lua/index.cc

src/box/lua/tuple.cc

src/box/rtree_index.cc

src/box/rtree_index.h

src/box/tuple.cc

src/box/tuple.h

src/box/tuple_convert.cc

src/errinj.cc

src/iobuf.cc

src/iobuf.h