Handy macros for callbacks.
Instead of:
std::bind(func_ptr, instnace, std::placeholder::_1)
you use:
CALLBACK_1(func_ptr, instance)
And also removes more warnings from the tests
Merge branch 'curl_raii' of https://github.com/sergey-shambir/cocos2d-x into sergey-shambir-curl_raii
Conflicts:
extensions/network/HttpClient.cpp
samples/Cpp/TestCpp/Classes/ExtensionsTest/NetworkTest/HttpClientTest.cpp