H2O library headers

 H2O is a new generation HTTP server that provides quicker response to users
 with less CPU utilization when compared to older generation of web servers.
 Designed from ground-up, the server takes full advantage of HTTP/2 features
 including prioritized content serving and server push, promising outstanding
 experience to the visitors of your web site.
 .
 This package provides the H2O library headers needed by developers.