Merge pull request #17 from TooBug/master

更新文档
Merge pull request #18 from TooBug/master

添加1.5文档
Merge pull request #20 from TooBug/master

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Merge pull request #21 from TooBug/master

更新1.5相关文档
修复一个错误

.class -> .class1
Merge pull request #23 from bluemsn/patch-2

非常感谢！
Merge pull request #1 from feichang/master

代码错误修复