On the trunk:

mod_http2: adding regular memory cleanup when transferring large response bodies. This
     reduces memory footprint and avoids memory exhaustion when transferring large files
     on 32-bit architectures. Fixes PR 62325. 



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1830419 13f79535-47bb-0310-9956-ffa450edef68