ModelicaTest.MultiBody.Parts.FreeBody has been changed in MSL 3.2.1 and gave a regression failure.
Renamed this model to FreeBody2 and re-introduced the original model from MSL 3.2 in order that a regression test is possible. 

git-svn-id: https://svn.modelica.org/projects/Modelica/trunk@6422 7ce873d0-865f-4ce7-a662-4bb36ea78beb