Inclusion of "real" \033 seemed to work but confused readline when
working with long history lines

Pablo goes better with Zenburn on Urxvt than Zenburn itself.

*   More intuitive file naming,
*   setup simplified,
*   setup is now in script (vs. diff file),
*   removed unnecessary exec mode.

http://www.vim.org/scripts/script.php?script_id=3337

Now it's

    PEP8 - F8
    flake8 - F7  ("f" vs. "7")

The latter is alternative for `gitka` bash alias