Bugfix for 'Undefined variable: content' notice

git-svn-id: https://plugins.svn.wordpress.org/subpages-expand/trunk@663188 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of github.com:BryanH/Wordpress_subpage-expand

Conflicts:
	readme.txt
	subpages_expand.php

Fixed "Undefined variable: content" bug; cleaned up code

git-svn-id: https://plugins.svn.wordpress.org/subpages-expand/trunk@663268 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed bug where some child pages weren't displaying on parent
Merge branch 'master' of github.com:BryanH/Wordpress_subpage-expand

Conflicts:
	readme.txt
	subpages_expand.php