Testsolar-testtool-sdk

What's Changed
* 部分Optional参数增加None默认值 by asiazhang in https://github.com/OpenTestSolar/testtool-sdk-python-py2/pull/4


**Full Changelog**: https://github.com/OpenTestSolar/testtool-sdk-python-py2/compare/0.1.6...0.1.7

What's Changed
* 将所有unicode调整为str by asiazhang in https://github.com/OpenTestSolar/testtool-sdk-python-py2/pull/3


**Full Changelog**: https://github.com/OpenTestSolar/testtool-sdk-python-py2/compare/0.1.5...0.1.6

What's Changed
* 增加解码base64格式环境变量 by asiazhang in https://github.com/OpenTestSolar/testtool-sdk-python-py2/pull/2


**Full Changelog**: https://github.com/OpenTestSolar/testtool-sdk-python-py2/compare/0.1.4...0.1.5

What's Changed
* 使用simplejson替代jsonpickle，以减少依赖 by asiazhang in https://github.com/OpenTestSolar/testtool-sdk-python-py2/pull/1

New Contributors
* asiazhang made their first contribution in https://github.com/OpenTestSolar/testtool-sdk-python-py2/pull/1

**Full Changelog**: https://github.com/OpenTestSolar/testtool-sdk-python-py2/compare/0.1.3...0.1.4