version 1.43

convert json in cell

exclude sheet and column with prefix

Merge pull request #29 from dantezhu/master

1. 解决之前的GUI加入sheetname后显示为空白 2. 解决导出为字典时，有冗余字段的问题

Merge branch 'dev'

ver 1.1.1 and change log

readme

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