Map C-ö to ido-switch-buffer

In order to make a unified keymap for
both sv and en.

Also fix some encoding problems
Use tcl/expect for remote login

More powerful. Can handle the console server case.
Now fully automated. Hopefully...

Need to configured prompt, user2 and password 2 in
env.el. prompt is mandatory. the rest two are needed
only if it is a console case.