CommonFile: renamed 'basename' to 'takeBaseName'
CommonFile: renamed 'extname' to 'takeExtension'
CommonFile: renamed 'dirname' to 'takeDirectory'
CommonFile: renamed 'notdir' to 'takeFileName'
CommonFile: renamed 'notext' to 'dropExtensions'
CommonFile: renamed 'undelimPaths' to 'splitSearchPath'
CommonFile: removed unused 'isPathDelimiter'