String buffers, part 1: object serialization.

Sponsored by fmad.io.

src/lualib.h

@@ -33,6 +33,7 @@ LUALIB_API int luaopen_debug(lua_State *L);
 LUALIB_API int luaopen_bit(lua_State *L);
 LUALIB_API int luaopen_jit(lua_State *L);
 LUALIB_API int luaopen_ffi(lua_State *L);
+LUALIB_API int luaopen_string_buffer(lua_State *L);
 
 LUALIB_API void luaL_openlibs(lua_State *L);