* net/tramp.el (tramp-local-host-regexp): Add "localhost6".

* net/tramp.el (tramp-local-host-regexp): Add "localhost6".
(tramp-file-name-port): Check also for `tramp-default-port'.
(tramp-get-connection-name): New defun.
(tramp-get-connection-process): Use it.
(tramp-debug-message): Extend function exclude list.
(tramp-drop-volume-letter): Fix doc string.

* net/tramp-cmds.el: Remove solved todo item.

* net/tramp-efs.el:
* net/tramp-ftp.el:
* net/tramp-gvfs.el:
* net/tramp-gw.el:
* net/tramp-imap.el:
* net/tramp-smb.el: Fix regexps added to `tramp-default-method-alist'
and `tramp-default-user-alist', respectively.

* net/tramp-gw.el (tramp-gw-open-connection): Use
`tramp-get-connection-name' and `tramp-get-connection-buffer'.

* net/tramp-imap.el (tramp-imap-make-iht): Use just
`tramp-file-name-port'.

* net/tramp-sh.el (tramp-methods): Add recursive options to "pscp"
and "psftp".  Exchange "%k" marker with options.
(tramp-do-copy-or-rename-file, tramp-sh-handle-file-local-copy):
Compute size of link target.
(tramp-do-copy-or-rename-file-out-of-band). Move setting of
`tramp-current-*' up due to gateway methods.  Optimze computing of
copy arguments.  Use `tramp-get-connection-name' and
`tramp-get-connection-buffer'.  Improve debug messages.
(tramp-compute-multi-hops): Remove port determination.
(tramp-maybe-open-connection): Use `tramp-get-connection-name'.

* net/trampver.el: Update release number.