function rename(oldPath, newPath, callback) {
        appshell.fs.rename(oldPath, newPath, _wrap(callback));
    }
function rename(oldPath, newPath, callback) {
        appshell.fs.rename(oldPath, newPath, _wrap(callback));
    }
function rename ( oldPath , newPath , callback ) { appshell . fs . rename ( oldPath , newPath , _wrap ( callback ) ) ; }
Rename the file or directory at oldPath to newPath, and call back
asynchronously with a possibly null FileSystemError string.

@param {string} oldPath
@param {string} newPath
@param {function(?string)=} callback
Rename the file or directory at oldPath to newPath and call back asynchronously with a possibly null FileSystemError string .
Rename a file or directory