Modified some keybindings.
Let `uniquify' take care of shell buffers too.
Remove advice of `describe-function' to show keybindings.
Emacs does this automatically since quite some time.
Use the simpler "Buffer selection" (`bs-show') instead of "ibuffer".
Let Emacs split windows as He pleases.
Fixed a bug in "init-shell" regarding calling `pcmpl-bash-setup' in `shell-mode-hook'.
Added shell-mode abbrev ",H" for "| head".
Use pcomplete's default completion function for files instead of using `compgen'.