Updated 'Next Page/Last Page' in assertion description

Replaced jQuery .first() with CSS pseudo-selector

Relocated jQuery .children() to calculate crumb elements .size()
Wrapped set-up code with AJAX request call

Added QUnit stop/start methods to ensure elements have been generated before next test-case
Added global to limit execution QUnit module() setup -> once per test-run

Replaced #qunit-fixture with custom element to maintain setup persistence between tests

Added QUnit done() to clear #qunit-custom elements once testing is complete