Do not run sync_nnmaildir more than once when running offlineimap.

Still buggy as there are race conditions.
Be nice with my eyes, enlarge emacs font size.

Align sawfish keybinds with Mac.
Align Linux touchpad like MacBookAir.

Likewise with keyboard shortcuts.
Allow setting emacs font size globally.
Continue to align Linux to Mac
Rename electric-complete to skeleton-complete