Refreshed plug-in

git-svn-id: https://plugins.svn.wordpress.org/page-hierarchy-plug-in/trunk@1022604 b8457f37-d9ea-0310-8a92-e5e31aec5664
Renamed to 'Sub Page Hierarchy Widget'. Added options to link title and limit depth of list display

git-svn-id: https://plugins.svn.wordpress.org/page-hierarchy-plug-in/trunk@1022606 b8457f37-d9ea-0310-8a92-e5e31aec5664