slime-presentation-current-input: don't ignore until-point-p.
Move last ChangeLog entry to the right file
Ensure contrib directory is pushed to load-path

... so that package.el succeeds in byte compiling the contribs.

* slime.el (slime--setup-contribs): Always push the contrib
directory to load-path, even if there aren't any contribs to load.
Restore workingness for Allegro's modern mode.

* swank/allegro.lisp (gray-package-name): Let the reader decide
whether the package name is in lower or upper case.

Fixes issue #209.
Delete trailing whitespace in swank/allegro.lisp
Revive swank-listener-hooks contrib.