I don't like vi-mode shells, apparently.

Revert "Add vim-mode indicator to prompt."
Revert "ZSH vim mode, go!"

This reverts commit 009e1d65d6a4c24ac7bdcd8245b5a0bc2b2f8e43.
This reverts commit 6d53e88a32c50dccc695cdbbec9ce7115d87f86c.
Add herbstluftwm configs.
Add conkyrc.