The current directory on the FTP server is changed to the directory specified by remotepath.
First available in version 3.0 build 2039.
remotePath - The path of the new current directory on the FTP server.
No output parameters.
When this method is called synchronously, a return object containing the output parameters is returned to the caller immediately.
You can specify relative or absolute paths for FTP.changeDir.
If the first two characters in the remotepath are ".." then a change to one level above the current directory is performed.
Set the first character of the remotepath to "/" to specify an absolute directory.