more debug information will be displayed when the plugin is not being activated properly

git-svn-id: https://plugins.svn.wordpress.org/contentde/trunk@795256 b8457f37-d9ea-0310-8a92-e5e31aec5664
changed stable tag to 1.0.5

git-svn-id: https://plugins.svn.wordpress.org/contentde/trunk@795258 b8457f37-d9ea-0310-8a92-e5e31aec5664