-Upgrade from C# 3.0 to C#4.0 in order to allow programming with TaskParallel.
-Replace one XML parse method with ParallelTask.
-Handle XmlException error in GUI when selecting a non-compliant XML file.
-Handle ArgumentException thrown in case a well-formed XML document contains unsupported nested data.
This release requires .Net Framework version 4.0 to be pre-installed.