Test for issue 156

[nevantan]

Tests that the meta link is gone from a book page with a parent while also ensuring the visible "Up" link is still on the page.

Note: This test will fail out on ccswbs/hjckrrh#726 until the requested changes are made.

[nevantan]

Demo

• Enable ug_testing_api and ug_book
• Run test, note failure
• Checkout iss156
• Run test, should pass