issue #4221 Refactor UILabel to UIText
issue #4221 Refactor constant for UILayout
issue #4221 Refactor constant for Layout
issue #4221 Refactor constant for ListView
issue #4221 Refactor constant for PageView
issue #4221 Refactor constant for ScrollView
issue #4221 Refactor constant for gui
Merge branch 'tests_js_3.0' of https://github.com/cocos2d/cocos2d-js-tests into tests_js_3.0
Merge pull request #359 from xingsenma/tests_js_3.0

issue #4221 Refactor constant for gui