More intents to make keybindings work on the console too.
Speed commands added to outshine.

Copied and modified from (the one and only) Org-mode.
First sketch of functionality for hiding comment subtrees.

Some refactoring of speed-commands.
Wrong number of arguments fixed.
Due to error "max-lisp-eval-depth" exceeded hiding comment subtreed
disabled.

Some renaming and refactoring.
Temporary counter variables added.

To see how often '-calc-' function are called during visibility changes.
Temporary counter variables removed again.