Update appveyor.yml with Nuget API key (NLog#4703)

Co-authored-by: Julian Verdurmen <[email protected]>

NLog 5.0 preview.3 (NLog#4635)

Release 4.7.12 (NLog#4630)

NLog 5.0 preview.2 (NLog#4590)

Merge pull request NLog#4468 from snakefoot/nlog5-rc1

NLog 5.0 preview 1 with strong-version 5.0.0.0

Release 4.7.11 (NLog#4520)

Release 4.7.10 (NLog#4427)

Version 4.7.9 (NLog#4376)

* Version 4.7.9

* 4.7.9

* Update CHANGELOG.md

Co-authored-by: Julian Verdurmen <[email protected]>

Release 4.7.8 (NLog#4305)

Version 4.7.7 (NLog#4257)

* Version 4.7.7


Co-authored-by: Rolf Kristensen <[email protected]>