Update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/dynamic-featured-image/trunk@786841 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/dynamic-featured-image/trunk@786843 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme.txt - Fixed typos

git-svn-id: https://plugins.svn.wordpress.org/dynamic-featured-image/trunk@786851 b8457f37-d9ea-0310-8a92-e5e31aec5664
version 1.1.5

git-svn-id: https://plugins.svn.wordpress.org/dynamic-featured-image/trunk@787114 b8457f37-d9ea-0310-8a92-e5e31aec5664