- Update: Combined buttons for the "collapse/expand" reference container

git-svn-id: https://plugins.svn.wordpress.org/footnotes/trunk@922320 b8457f37-d9ea-0310-8a92-e5e31aec5664
changed Feature to be a Update

git-svn-id: https://plugins.svn.wordpress.org/footnotes/trunk@922322 b8457f37-d9ea-0310-8a92-e5e31aec5664