BIRD 2.15

Dear BIRD users, we're releasing a new version 2.15. As usually, I am just a messenger, all credits go to my colleagues: Version 2.15 o BGP: Send hold timer o BGP: New options to specify required BGP capabilities o BFD: Improvements to 'show bfd sessions' command o RPKI: New 'local address' configuration option o Linux: Support for more route attributes, including TCP congestion control algorithm o Support for UDP logging o Static routes can have both nexthop and interface specified o Completion of command options in BIRD client o Many bugfixes and improvements Happy routing! Ondrej