- Added uninstall script and changed the settings regarding deleting data. Now you have to double confirm deleting your exam. This is to avoid accidential data loss.
- Removed wpframe and other obsolete code
- Made small change to the display of radio and checkbox questions to allow easier formatting on one line with CSS

git-svn-id: https://plugins.svn.wordpress.org/watu/trunk@810262 b8457f37-d9ea-0310-8a92-e5e31aec5664