change http strategy

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refine async api

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update api

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change history begin and end to int

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change to submodule mode

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remove lib files

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use (()) to mark group mask == 2

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update submodule

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fix issue #335

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try add win32 compability

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统一Cmake的Library引用名称

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update cmake logic

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clean cmake file

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使用purple的eventloop来提供async

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add log redirect

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fix database dir on windows

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clean compile warnning

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webqq 以换hash函数为本

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update liblwqq reference

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Merge branch 'upstream-preview' into preview