+semver: breaking bump to version 17.0.0 (#1392)

* upgrade csproj to net5.0

* add make and build tools to image

* fix code broken after net5.0 upgrade

* update circle build image

* removed rafty and updated more packages

* all packages upgraded and tests passing

* bring back develop

* rename authorisation to authorization

README.md

@@ -81,4 +81,4 @@ If you think this project is worth supporting financially please make a contribu
 
 ## Things that are currently annoying me
 
-[![](https://codescene.io/projects/697/status.svg) Get more details at **codescene.io**.](https://codescene.io/projects/697/jobs/latest-successful/results)
+[![](https://codescene.io/projects/697/status.svg) Get more details at **codescene.io**.](https://codescene.io/projects/697/jobs/latest-successful/results)