* Update js auto binding settings with new ndk version
* Remove unnecessary property from Ref
* Merge part of Cocos2d-x-lite :
1. Improve network bindings
2. Use nullptr instead of NULL
3. Remove usage of some deprecated APIs
4. Add some defensive code and cleanup
* Fix spine track entry circle referencing issue
* cocos2d/cocos2d-x#16327: Fix global object leak issue in JSB
* Improve ScriptingCore::evalString, old implementation have been deprecated in Spidermonkey
* Update JS versions
* Add docs for web v3.13
* Improve ScriptingCore
* Manual merge cocos2d/cocos2d-x#16383 by DavidDeSimone
* Fix auto bindings configurations
* Update web ref
Instead of using two uthash entires, it uses two unordered_map entries.
Benefits are:
easier to debug. I can inspect the contents of the unorderd_map with the
debugger
less memory. I don't need to allocate two proxies. I only allocate one
proxy and I added it into both maps
If also fixes an important bug when unrooting objects. Unroot was
cleaning the heap object. So now proxy adds a _jsobj, which is a raw
pointer. Needed under certain cases.