1、将/ppt/pageImage 接口的uemail和token字段从header改为GET参数传入；2解决token可能存在空指针导致toLowerCase的出错。
Merge pull request #46 from FeverTeam/dev-iron

1、将/ppt/pageImage 接口的uemail和token字段从header改为GET参数传入；2解决token可能存在空指针导致toL...
Merge pull request #47 from FeverTeam/dev

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