Added functions:
glazyMultipleBegin() – Begin a list of multiple elements. Specify default attributes such as 'tagName' to be used by all added elements.
glazyMultipleAddElement() – Add an element (in the same style as `glazyElement()`) to a multiple element list.
glazyMultipleFinishSiblings() – Finish and display a list of multiple elements as sibling elements. An optional spacing string can be specified, this is useful say for a list of `<a>` inline links with a space between each one.

Also added `burntCheck()` function, which is useful instead of having to check variables for null and specifying a default value.
Instead of
$abc = !empty($options['abc']) ? $options['abc'] : 42;
use:
$abc = burntCheck($options['abc'], 42);