#1010506 by dww, chx, hgurol: Fixed FileTransfer doesn't properly handle any advanced settings nor the ssh username

#609772 by dww, JacobSingh, ksenzee: Fixed Impossible to extend the FileTransfer class system in contrib

- Patch #612546 by dhthwy, jpmckinney, dww: remove the broken FileTransferFTPWrapper (file stream) class.

- Patch #443286 by c960657, Damien Tournoud, drifter, webkenny, scor: international characters break file handling.

#679890 follow-up by Bojhan, aspilicious, and agentrickard: Remove more extraneous 'Please' in the interface.

#602520 by JacobSingh and dww: Make FileTransfer form have one option for FTP (ftp_extension() preferred).

- Patch #605344 by dww: documentation and code style fixes for update manager. This was ready before freeze.

#538660 by JacobSingh, dww, JoshuaRogers, adrian, Crell, chx, anarcat, and cwgordon7: Add a functioning Plugin Manager to core. Can you say module installation and updates through the UI? I knew you could! :D

#517814 by jmstacey, justinrandell, pwolanin, drewish, Jody Lynn, aaron, dopry, and c960657: Converted File API to stream wrappers, for enhanced private/public file handling, and the ability to reference other storage mechanisms such as s3:// and flicker://.

- Patch #395472 by JacobSingh, chx, cwgordon7: more improvements to the file transfer system to pave the path for a plugin manager.  Heroic effort.

- Patch #395472 by chx, dww, cwgordon7, JacobSingh, et al: added different file transport mechanisms to core in preparation of a plugin manager.