1.0.0-beta.16

• Added NormalizedPath.ContainsDescendantOrSelf().
• Added NormalizedPath.ContainsChildOrSelf().
• Fixed several bugs with the implementation of NormalizedPath.GetRelativeOutputPath().
• Added a IReadOnlyFileSystem.GetRelativeOutputPath() extension.
• Added a IReadOnlyFileSystem.GetRelativeInputPath() extension.
• Added IFileSystem.ExcludedPaths to indicate input paths that should be excluded from processing.
• Added .GetInstance(Type) and .GetInstance<TType>() methods to the ClassCatalog.
• Fixed a bug where custom commands were being added twice (#103).
• Fixed a bug in the GenerateRedirects module for original files ending in .htm (#105).
• Updated Spectre.Cli to version 0.35.0 with better internal command registration (#110, thanks @patriksvensson).
• Removed restriction on only using IDocument models in Razor (#108, #23, thanks @alanta).