[octavia] Stepping down from Octavia core team

Hi all, As some of you already know, I'm no longer involved in Octavia development and therefore stepping down from the core team. It has been a pleasure to be a part of the Octavia (and neutron-lbaas) core team for nearly three years. I learned a lot. Octavia is an excellent project with a strong core team, and I'm sure it will continue to grow and gain more adoption. Thanks, Nir