Added optional	$n argument to fetch_array to return row[$n]

Returns full array if not given.
Changed debugging level and do not set CSP headers outside of index.php
Change $instance to protected, to match _pdo (was throwing error)
Set CSP headers after we have determined this is not an AJAX request
Better handling of Nodes in bootstrap and JSON in handleJSON

handleXHRjson renamed to handleJSON (since it isn't necessarily
XMLHttpRequest). It can be used in other cases as well.

Change Element.bootstrap to Node.bootstrap and check nodeType
internally.

Added classList and CSSgradient tests.

Bind this in form.ajaxSubmit instead of setting form as a var and using
that.

Check attributeFilter is not undefined and then isArray in $().watch()

Element.matches now handles being passed something other than a string.

Assume classList support, since is supported in IE > 7.

Remove all references to [data-target] since handleJSON sets target.

Finally, check 'method' in this instead of !!this.method
Remove debugging for simple_date
Just added new line at end