Implement rename FTP functionality.
Implement rename FTP functionality.

Change-Id: I8db189c091b9b4665a113ed8c46d2ea0797bc4c0

watermanio/Gaufrette,igormukhingmailcom/Gaufrette,alex88/Gaufrette,ronaldlopez/Gaufrette,KnpLabs/Gaufrette,acucchieri/Gaufrette,acucchieri/Gaufrette,watermanio/Gaufrette,1001Pharmacies/Gaufrette,ronaldlopez/Gaufrette,NiR-/Gaufrette,1001Pharmacies/Gaufrette,jenkoian/Gaufrette,Consoneo/Gaufrette,alex88/Gaufrette,igormukhingmailcom/Gaufrette,jenkoian/Gaufrette,peelandsee/Gaufrette,WayOfBrave/Gaufrette,NiR-/Gaufrette,WayOfBrave/Gaufrette,KnpLabs/Gaufrette