@hinshun has been a very valuable contributor to the project,
especially for the solver component.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
No affiliation change (NTT).
The former email address will continue to be available for the time
being.
For daily communication, I still prefer to use my gmail.com address.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>