Chinese strings API0.9.6

[bqlf1907]

i updated API 0.9.6.

C++ Client receive Strings(Chinese) From Server, the Strings display messy code in C++ Client.

if C++ Client send str(Chinese) To Server,the str display messy code in Server too. But Server Send the str (that received from C++ Client) to C++ Client, C++Client receive the str display is normal(Chineset),
IOS Client receive the str display messy code too.

so C++ Client receive str display normal only from self send, else is messy code.

[scofy]

There is a bug in the method putUtfString of the client api,could anyone check and fix it.