Added debugging information in emscripten DEBUG mode
closed #2447: Fix clippingNodeTest RawStencilBufferTest6 crash bug
Removed all warnings from Box2D since it is an external project.
Added clang support for linux.
Merge pull request #3332 from azmeuk/clang

Clang support for Linux
[ci skip]
Merge pull request #3330 from dabingnn/Iss2447-ClippingNodeTestCrash-bug

closed #2447: Fix clippingNodeTest RawStencilBufferTest6 crash bug
closed #2448 : Fix crash when call glGetAttachedShaders with a NULL parameter on Windows
closed #2448: Fix some indent syntax!
replace indent by using space instead of tab
Merge pull request #3333 from dabingnn/Iss2448-OpenGLTestCrash-LuaJS-Bug

Iss2448 open gl test crash lua js bug