Misc. bug fixes

git-svn-id: https://plugins.svn.wordpress.org/accessible-video-library/trunk@885169 b8457f37-d9ea-0310-8a92-e5e31aec5664
Commit 1.0.7 to stable tag

git-svn-id: https://plugins.svn.wordpress.org/accessible-video-library/trunk@885172 b8457f37-d9ea-0310-8a92-e5e31aec5664