Summary of problem description

mitkPointSetWriter and mitkPointSetReader can't handle pointset with different format depending on used locale setting.

Cause of the bug

Default locale setting is used for writing and reading pointset.

Proposed solution

Use the C locale setting

Affected classes

mitkPointSetReader, mitkPointSetWriter, vtkPointSetXMLParser

How will the bugfix get tested?

Unittest: mitkPointSetLocaleTest