Fix "Private message" icon display

Line 424 in admin_comments.php had incorrect string format for the echo
that displays the "Private message" icon in the comments admin panel.
Menu manager: Adds breadcrumb helper function getParentMenuItems() that seems useful for custom checks or custom breadcrumbs if there are parents. Separates just code that was part within printMenuManagerBreadcrumb() function.
Merge pull request #609 from JimBrown/master

Fix "Private message" icon display
fix #610
Report database supplied connection errors
Merge remote-tracking branch 'origin/master' into 1.4.6

Conflicts:
	zp-core/zp-extensions/menu_manager.php

	modified:   zp-core/functions-db-MySQL.php
	modified:   zp-core/functions-db-MySQLi.php
	modified:   zp-core/functions-db_PDO.php
	modified:   zp-core/zp-extensions/comment_form/admin-comments.php
	modified:   zp-core/zp-extensions/menu_manager.php
	modified:   zp-core/zp-extensions/zenpage/zenpage-template-functions.php
Some removal of use of sorttype and sortdirection parameters
fix #611
Merge remote-tracking branch 'origin/master' into 1.4.6
fix #604

This is not perfect, but will do until the back-end is re-vamped
Merge remote-tracking branch 'origin/master' into 1.4.6
fix #602
Merge remote-tracking branch 'origin/master' into 1.4.6
package update
fix SQL error if id is the sort type
RSS option handling
fix #340
#611
Merge remote-tracking branch 'origin/master' into 1.4.6

Conflicts:
	zp-core/Zenphoto.package

	modified:   zp-core/Zenphoto.package
	modified:   zp-core/admin-functions.php
	modified:   zp-core/zp-extensions/GoogleMap.php
	modified:   zp-core/zp-extensions/GoogleMap/Map.php
	modified:   zp-core/zp-extensions/image_album_statistics.php
	modified:   zp-core/zp-extensions/menu_manager/menu_manager-admin-functions.php
external feed updates