[Emacs] Remove evil.

Change-Id: I991bdbf8963922b0b52b0b1d6acc15c6a758e492
Signed-off-by: Wei-Chung Wen <morisato3711@gmail.com>
[Emacs] Fix iBus input issue.

This requires ibus-el.

Change-Id: I609520c79203895673c92684c050d27495cc74de
Signed-off-by: Wei-Chung Wen <morisato3711@gmail.com>
[Emacs] Keep search keyword highlightened.

Change-Id: I00e767af0c30d113315397ba0d0f515c23bb33b6
Signed-off-by: Wei-Chung Wen <morisato3711@gmail.com>