Don't count files that will get skipped towards the pagination limit in :ls calls

git-svn-id: https://plugins.svn.wordpress.org/vaultpress/trunk@853002 b8457f37-d9ea-0310-8a92-e5e31aec5664
Release plugin 1.5.3

git-svn-id: https://plugins.svn.wordpress.org/vaultpress/trunk@853003 b8457f37-d9ea-0310-8a92-e5e31aec5664