Revert "Add jumplist."

This reverts commit 2100f250d277d075cee38585279ff59b012765e1.
Revert "Add --small, --medium & --big command-line options."

This reverts commit a4ade25d7fb709992af8ae295a0f727b775187f8.
Revert "Update man page."

This reverts commit 6707decc6924f46fac39bb4b3d9b5d67eddf8ac7.
Revert "Add --version command-line option."

This reverts commit 3ad0a5eec54dbe3e1cea836c94166cdc779482d9.