Merge branch 'master' into index-speedup

debian/changelog

doc/user/stored-procedures.xml

include/asio.h

include/coeio.h

include/ipc.h

include/pickle.h

include/tarantool.h

include/tarantool_eio.h

src/CMakeLists.txt

src/asio.m

src/box/CMakeLists.txt

src/box/box.lua

src/box/box_lua_space.h

src/box/box_lua_space.m

src/box/index.h

src/box/space.m

src/coeio.m

src/lua/init.m

src/lua/lua_ipc.m

src/memcached.m