Some fixes.

* Fix `eli-compare-two-buffers': for some reason it's not enough to use
  `set-buffer' to change the position.

* Fix starting with command-line arguments: mess with loading the
  desktop thing.  (Also make `is-fast-p' a plain variable.)
Some changes.

* Switch to `ignore-errors'.
* Avoid different behavior when dragging a file into Emacs in a dired
  buffer.
* A whole bunch of new special char shortcuts.
Catchup and sync my version of the calculator with the version in the
Emacs repository.
Some fixes.

* Fix use of the bogus `modeline' face.

* Fix desktop loading without buffers.  (Something that was broken for a
  while, and started to cause errors with desktop file locking.)

* Add a binding for the useful `find-dired' (replaces `speedbar' which
  moved to `ESC M-f1').
Update README.