* BUG: do not test correctly diplicate entries for external link (now, only one shortlink may be available per external link)* BUG: Remove the key of the MySQL table ; * BUG: convert url_externe into text to remove the 255 characters limitations

git-svn-id: https://plugins.svn.wordpress.org/shorten-url/trunk@889610 b8457f37-d9ea-0310-8a92-e5e31aec5664