Release 0.6.2 of PyFoam. Minor enhancements. For details see the ReleaseNotes

git-svn-id: svn://svn.code.sf.net/p/openfoam-extend/svn/trunk/Breeder/other/scripting/PyFoam@2023 e4e07f05-0c2f-0410-a05a-b8ba57e0c909