Fixes bug where full excerpt included html and broken images

git-svn-id: https://plugins.svn.wordpress.org/wp-rss-retriever/trunk@847801 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixes bug where full excerpt included html and broken images - update stable tag

git-svn-id: https://plugins.svn.wordpress.org/wp-rss-retriever/trunk@847802 b8457f37-d9ea-0310-8a92-e5e31aec5664