Printing mails. (#471)

* Implemented printing functionality.

* Implemented icon for printing.

* Remove debug code.

Wino.Core.Domain/Interfaces/IApplicationConfiguration.cs

@@ -17,5 +17,11 @@
         /// Publisher shared folder path.
         /// </summary>
         string PublisherSharedFolderPath { get; set; }
+
+        /// <summary>
+        /// Temp folder path of the application.
+        /// Files here are short-lived and can be deleted by system.
+        /// </summary>
+        string ApplicationTempFolderPath { get; set; }
     }
 }