Updated Newtonsoft.Json nuget package
Merge branch 'update-json.net' of github.com:NielsKlosterAndreassen/raven-csharp into NielsKlosterAndreassen-update-json.net
Updated JSON.NET to v6.0.5
Updated the NuSpec file's Newtonsoft.Json dependency from v4.5.11 to v6.0.5
Updated icon url
Updated NSubstitute from v1.6.10 to v1.7.2.0
Ignoring NuGet packages
Updated NuGet
Added .NET version specifier to the file element in the nuspec