Emacs-mode非常有用的快捷键
Shift-+ help
Ctrl-q: Toggle Emacs-mode
1. ESC：Remove focus from link or form control
2. Ctrl-j: Jump to link or form control
3. (n)j (p)k: Scroll donw/up(10%)
4. f b: Scroll right/left(10%)
5. ctrl-l (浏览器默认，输入地址栏）
6. >: Scroll to end
shift->: Sccroll to home
7. Ctrl-x Ctrl-c: Close all windows
8. Ctrl-g: Cancel
9. Ctrl-s: search
