'outline-mode-easy-bindings' merged into outshine.el. some keybindings made
conditional on point being on a headline, with a macro copied from Alexander
Vorobiev (Thanks!)
error call in keybinding macro replaced with warning message.
define-key-with-fallback improved, keybindings adapted. seems to work in all
situations now.
obsolete comments removed, credits given to Alexander Vorobiev.