fixed alleviatePathParts, refs #55329
see http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx

git-svn-id: svn://svn.appwork.org/utils@2159 21714237-3853-44ef-a1f0-ef8f03a7d1fe
fixes #55347

fixed a bug in MacOsVersionDetection

git-svn-id: svn://svn.appwork.org/utils@2160 21714237-3853-44ef-a1f0-ef8f03a7d1fe
fixes http://svn.jdownloader.org/issues/54846
fixes #54846


git-svn-id: svn://svn.appwork.org/utils@2161 21714237-3853-44ef-a1f0-ef8f03a7d1fe