Fix keybinding for Linux, so that it is more like Mac.
Merge branch 'from-mac/98-fe-94-4b-e0-a4-macbookair-Darwin' of github.com:baohaojun/windows-config
Fix gnome-classic start fail error.
Continue to align Linux and Mac.
Fix gitp when .git is a submodule file.
Do not run sync_nnmaildir more than once when running offlineimap.

Still buggy as there are race conditions.