Add docs for the newest hook.

AP_DECLARE_HOOK(int,process_connection,(conn_rec *c))

/**

 * This hook allows modules to create connections. After the connection

 * has been accepted, the socket is passed to this function to actually

 * insert all filters that operate on the network, and create the connection

 * record. The first module to create a connection is the last module

 * run

 * @param p The pool from which to allocate the connection record

 * @param csd The socket that has been accepted

 * @param conn_id A unique identifier for this connection.  The ID only

 *                needs to be unique at that time, not forever.

 * @return An allocated connection record or NULL.

 */

AP_DECLARE_HOOK(conn_rec *, create_connection,

                (apr_pool_t *p, apr_socket_t *csd, int conn_ed))

                (apr_pool_t *p, apr_socket_t *csd, int conn_id))

#ifdef __cplusplus

}