modify Clipping to RenderTexture Test to get correct behavior
let billboard can rotate in the Z axis
performance improvement
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Modify bugs for flatbuffers
Merge pull request #9377 from dabingnn/v3.3Perf

performance improvement
Merge pull request #9381 from pipu/modify_bugs_for_flatbuffers

Modify bugs for flatbuffers
Merge pull request #9354 from huangshiwu/v3_clippingnode

modify Clipping to RenderTexture Test to get correct behavior
Merge pull request #9378 from lite3/patch-1

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update runtime version to 1.6
Merge pull request #9388 from cocoscodeide/v3

update runtime version to 1.6
update for cocos reader
update for cocos reader
update ReleaseNotes
update ReleaseNots
update ReleaseNotes
Merge pull request #9392 from dabingnn/v3_releaseNotes

V3 release notes
fixed renameFile for wp8 and winrt to pass file and assetmangers tests
invoke closedir after invoke opendir
calculate aabb if not exist