Updated to code to fix the bug inspirationdate found: "The link added is relative so it doesn't work when the toolbar is displayed on the frontend".

git-svn-id: https://plugins.svn.wordpress.org/wp-super-cache-clear-cache-menu/trunk@924146 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme.txt file.

git-svn-id: https://plugins.svn.wordpress.org/wp-super-cache-clear-cache-menu/trunk@924147 b8457f37-d9ea-0310-8a92-e5e31aec5664