Turn on exception handling mode for PDO.  Fix for databases with hyphens in the name.
Using WP Filesystem.  Adding a UI element to remove the custom db.php drop-in
Uninstall and deactivate methods.  Remove the db.php drop in automatically.
Exception handling for queries, hide errors for fetching results on queries with no results (e.g. update queries)
Block directory traversal
Block direct php file access
Merge pull request #1 from markoheijnen/kurtpayne

Fix PDO bugs, add ability to remove db.php drop-in, added uninstall/deactivate methods and switching to  $wp_filesystem