Vim: Fix Unite plugin settings.
Revert "Vim: Fix formatoptions option settings."

This reverts commit fcbcdee2ab528c86cdacd7be2b264b1cae8bd08a.
Revert "Fix header width. #1"

This reverts commit 01a01fe9740c1148c187c0e235dd854f1d3c8402.
Fix header width. #1