Please add copyright notice

[andreasmuellergin]

The project contains an Apache 2.0 license file, however, it does not follow the conditions and recommendation in the appendix of the license.

Packages are routinely rejected by the OSS legal offices because of missing or incomplete copyright information. So it would be great to include the copyright statement to avoid problems when using this framework.

Apache 2 license conditions according to Github License summary
License and copyright notice
State changes

Thanks a lot.

[oshai]

Can you give an example how it should be, or ideally a pull request?

[andreasmuellergin]

According to the appendix "Copyright {yyyy} {name of copyright owner}" which is probably covered by
Copyright 2016-2018 The kotlin.logging framework contributors

[oshai]

@andreasmuellergin please see this PR and let me know if that is ok. if so I will merge that: #53

[oshai]

Added it