merge from trunk (but preserve ap_get_server_version()):

  *) The full server version information is now included in the error log at
     startup as well as server status reports, irrespective of the setting
     of the ServerTokens directive.  ap_get_server_version() is now 
     deprecated, and is replaced by ap_get_server_banner() and 
     ap_get_server_description().

Reviewed by: rpluem, jim



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@446606 13f79535-47bb-0310-9956-ffa450edef68