[lint] Update setuptools for Travis-CI (#3698)
[lint] Update setuptools for Travis-CI (#3698)

Update Python setuptools so the Travis-CI will not fail to
install some recent Python packages.
crosswalk-project/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,Honry/crosswalk-test-suite,Honry/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,Honry/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,haoxli/crosswalk-test-suite,BruceDai/crosswalk-test-suite,ibelem/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,haoxli/crosswalk-test-suite,Honry/crosswalk-test-suite,ibelem/crosswalk-test-suite,ibelem/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoxli/crosswalk-test-suite,ibelem/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,haoxli/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,haoxli/crosswalk-test-suite,BruceDai/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,Honry/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,ibelem/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,ibelem/crosswalk-test-suite,Honry/crosswalk-test-suite,haoxli/crosswalk-test-suite,Honry/crosswalk-test-suite,ibelem/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,Honry/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoxli/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite,BruceDai/crosswalk-test-suite,haoxli/crosswalk-test-suite,ibelem/crosswalk-test-suite,crosswalk-project/crosswalk-test-suite,kaixinjxq/crosswalk-test-suite,haoyunfeix/crosswalk-test-suite