Update Commons IO to 2.3 from 2.1 (tests.)
Update Commons IO to 2.3 from 2.1 (tests.)

git-svn-id: c455d203a03ec41bf444183aad31e7cce55db786@1328352 13f79535-47bb-0310-9956-ffa450edef68

svn2github/commons-vfs2,svn2github/commons-vfs2,svn2github/commons-vfs2