On the trunk:

mod_http2 after review by Christophe:
  * fix h2_fifo_peek to properly block
  * check peek return status while processing mplx queue



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1789276 13f79535-47bb-0310-9956-ffa450edef68