Fixed https://github.com/msgpack/msgpack-c/issues/76
Clear deserialized target containers.
As the result of this fix, all containers' deserialized behaviors become consistent.
Merge pull request #127 from redboltz/clear_set_map

Fixed https://github.com/msgpack/msgpack-c/issues/76
Replaced uint64_t with apropriate types.
Merge pull request #136 from redboltz/replace_uint64_t_with_apropriate_types

Replaced uint64_t with apropriate types.