New
- Added the ability to output messages to the standard error stream. Now messages above the `WARNING` level will not be output to the `stdout`. To output them, need to use `stderr`
- Write message to specific outputs via `log.now`
- Now `log.output` allows to set the output as an argument
- Now `log.level` allows to set the level as an argument
Bug fixes
- Fixed streams redirection in Windows
- Printing information about the type of the logged message to the standard output stream and file
- Printing the date and time to the standard output stream