Metadata is gone in 1.10.0

[rxaviers]

Update builder and unit tests accordingly

[jzaefferer]

bgiframe doesn't exist anymore either.

[thezoggy]

bgiframe was for ie6 was it not? which has been removed for 1.10.x+

[rxaviers]

Update builder and unit tests accordingly

Needed to change unit tests. But, not builder.

For unit tests:

• Skip checking for external libs jquery.bgiframe-2.1.2.js, jquery.cookie.js, and jquery.metadata.js;
• Adds check for animated-overlay.gif image;