Update paket.dependencies
Fix references.
Remove OwinRailway in preparation for upcoming Pipeline
Create new Dyfrig.Net.Http project.
Move System.Net.Http adapter to Dyfrig.Net.Http library.
Add repro test case.
Update doc generator tools
Update RELEASE_NOTES.md
Fix build versioning.
Use F# 3.1
Use MSBuild extensions to toggle FSharp.Core version