2.4.x: full sync of mod_http2 with trunk#602

icing wants to merge 2 commits intoapache:2.4.xapache/httpd:2.4.xfrom

icing:h2-v2.0.38-full-sync-2.4.xicing/httpd:h2-v2.0.38-full-sync-2.4.xCopy head branch name to clipboard