Add BasePath property to IHybridWebView

IHybridWebView.cs

@@ -4,9 +4,10 @@ namespace PortableRazor
 {
 	public interface IHybridWebView
 	{
+		string BasePath { get; set; }
+
 		void LoadHtmlString(string html);
 
 		string EvaluateJavascript (string script);
 	}
-}
-
+}