add API document for Librec-2.0.0#77
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guoguibing merged 1 commit intoguoguibing:2.0.0from Jan 26, 2017
SunYatong:2.0.0
Merged
add API document for Librec-2.0.0#77guoguibing merged 1 commit intoguoguibing:2.0.0from SunYatong:2.0.0
guoguibing merged 1 commit intoguoguibing:2.0.0from
SunYatong:2.0.0