[testcase]修改不通过的用例
Merge pull request #576 from tianlili/dev

[testcase]修改不通过的用例
[Change] 支掉多余的import
[Chang] 更改each为forEach
[Change] 更改each为forEach
[Change] 开放blank到2.0中，magic有使用到这个方法
Merge pull request #577 from linlingyu/dev

Dev
[BugFix] 禁止draggable拖拽表单元素
Merge pull request #578 from linlingyu/dev

[BugFix] 禁止draggable拖拽表单元素
[BugFix] 将i18n的中文包中文字符进行转码，防止在非utf-8页面下会出错
api & demos
Merge branch 'dev' of https://github.com/BaiduFE/Tangram2 into dev
Merge pull request #579 from liaoxuezhi/dev

api & demos
Merge branch 'dev' of https://github.com/BaiduFE/Tangram2 into dev
[Change] 重新加入zh-CN语言包到打包源码中
Merge pull request #580 from linlingyu/dev

Dev
[Change] 修改版本号为2.0.2.3
Merge pull request #581 from linlingyu/dev

[Change] 修改版本号为2.0.2.3