fixed one-hang-bug in cocos-console-test.py
Merge pull request #6559 from shujunqiao/cocos-console-hang

fixed one-hang-bug in cocos-console-test.py. [ci skip]
Re-adds download-deps.py, comments unzip functionality, please help to
test the download functionality. Thanks.
Percent number fix
Speed calculate fix
Merge pull request #6590 from dumganhar/v3

Re-adds download-deps.py, comments unzip functionality, please help to test the download functionality. Thanks.
[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #6591 from CocosRobot/update_cocosfiles_1399375244

[AUTO][ci skip]: updating cocos2dx_files.json
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_fix