Merge branch 'bugfix' of github.com:fsprojects/Paket

# Conflicts:
#	RELEASE_NOTES.md
#	src/LockFileComparer/AssemblyInfo.fs
#	src/Paket.Bootstrapper/Properties/AssemblyInfo.cs
#	src/Paket.Core/AssemblyInfo.fs
#	src/Paket/AssemblyInfo.fs

Author: forki

RELEASE_NOTES.md

@@ -1,9 +1,12 @@
-#### 6.0.0-alpha045 - 2020-10-21
+#### 6.0.0-alpha046 - 2020-10-22
 * Full .NET Core / SDK compatible version
 * Support for XCode
 * Support for .net5.0
 * FSharp.DependencyManager.Paket FSI extension for #r "paket: ..."
 
+#### 5.251.0 - 2020-10-22
+* Backwards compatibility for netcoreapp5.0 moniker
+
 #### 5.250.0 - 2020-10-21
 * Allow net5.0 moniker