Last tweak for better error reporting with the Blubrry API server.

git-svn-id: https://plugins.svn.wordpress.org/powerpress/trunk@956075 b8457f37-d9ea-0310-8a92-e5e31aec5664
Latest PowerPress readme.txt updated, will be releasing PowerPress 5.0.9 at 2pm Eastern today.

git-svn-id: https://plugins.svn.wordpress.org/powerpress/trunk@956086 b8457f37-d9ea-0310-8a92-e5e31aec5664