[Emacs] Hide menu bar.

Change-Id: Ia890c1d3cafabecd3020903df3179aef4a00b389
Signed-off-by: Wei-Chung Wen <morisato3711@gmail.com>
[Emacs] Do NOT always highlight search keyword.

It is not as useful as I think...

Change-Id: Idbcb8b00c840f942eea1f1e0929b16f620118679
Signed-off-by: Wei-Chung Wen <morisato3711@gmail.com>
[Emacs] Case-sensitively search by default.

Change-Id: I1e8166f5ad5632260e6331e4d575490c4973b54c
Signed-off-by: Wei-Chung Wen <morisato3711@gmail.com>