master updated (4be1686 -> 7f51ab5)

[Michael Albinus]

albinus pushed a change to branch master.

      from  4be1686   Use lexical-binding for some term libraries
       new  a9432bd   Improve Tramp debug messages
       new  7f51ab5   Do not delete asynchronous Tramp processes due to session 
timeout


Summary of changes:
 lisp/net/tramp-cache.el | 48 +++++++++++++++++++++++++++++-------------------
 lisp/net/tramp-cmds.el  | 12 ++++++++----
 lisp/net/tramp-sh.el    |  2 +-
 3 files changed, 38 insertions(+), 24 deletions(-)