Further clarification of language

git-svn-id: https://plugins.svn.wordpress.org/page-hierarchy-plug-in/trunk@997694 b8457f37-d9ea-0310-8a92-e5e31aec5664
Less alarming language in the FAQ

git-svn-id: https://plugins.svn.wordpress.org/page-hierarchy-plug-in/trunk@997696 b8457f37-d9ea-0310-8a92-e5e31aec5664
Another tweak to the name

git-svn-id: https://plugins.svn.wordpress.org/page-hierarchy-plug-in/trunk@997697 b8457f37-d9ea-0310-8a92-e5e31aec5664