changed file names to lower case

git-svn-id: https://plugins.svn.wordpress.org/dpabottomofpostpage/trunk@988087 b8457f37-d9ea-0310-8a92-e5e31aec5664
nee to lower case

git-svn-id: https://plugins.svn.wordpress.org/dpabottomofpostpage/trunk@988089 b8457f37-d9ea-0310-8a92-e5e31aec5664