Cptools

- `feat`: add new interfaces, see [tool function](tool_function.md)
- `del`: delete useless functions, module of notify

- `feat`: enable `LogHandler` for python2
- `feat`: enable save log file in windows platform

- `fix`: fix error when import `DingDing` in notify, `EmailSender` will raise error.

- `fix`: fix error in v.1.4.4

> abandoned

- `logger`: add logger name in log display.
- `setup`: remove requirements for `DingtalkChatbot` and `yagmail` in `setup.py`