Add MMN bump: Add protocols and protocols_honor_order to core_server_config.

Add hooks protocol_propose, protocol_switch and protocol_get. Add
ap_select_protocol(), ap_switch_protocol(), ap_get_protocol(). Add
HTTP_MISDIRECTED_REQUEST.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1705500 13f79535-47bb-0310-9956-ffa450edef68