fix #478 selectbox doesn't work when selected value is equal to zero

When the selected value is zero, the selectbox doesn't work properly. If condition changed in order to avoid weird behaves with value equals to zero.
feat #479 Adding phantomjs version in travis log.

Closes #479
fix #480 Temporarily disabling test.aria.utils.History in travis.

test.aria.utils.History randomly fails with phantomjs
This commit disables this test until further investigation is done.
feat #471 Easy loading of templates in iframe

Provide a simple and reliable interface to load and test a template inside an iframe.
This also attempts at deprecating the usage of iframeLoaderOs, see #435

Close #471