Add a keyword to the Options directive that enables the display
	of error-notes text in server-generated 500 status pages.  By
	default, this information will not be included any more (several
	reports of this exposing sensitive information, so our users
	don't like it regardless of our opinions).  Adding
	"Options DebugServerErrors" will enable it.  The keyword is
	only a placeholder until we come up with a better name.
	In addition, the type of allow_options_t has been changed
	from a char to an int; I don't think this warrants an MMN
	bump because a) that's a core-private type, and b) access to
	the information is through ap_allow_options(), which extends it
	to an int anyway.
	This patch also fixes the problem of partial per-dir config
	merges if a parse error occurs somewhere in an .htaccess file
	in the tree.  One instruction of additional overhead, and now
	.htaccess files with ErrorDocument 500 will work properly
	for subordinate directories.

PR:		2409, 3173
Obtained from:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82262 13f79535-47bb-0310-9956-ffa450edef68