[BUG] IIIF Manifest does not supply node title as manifest @label

[ajstanley]

What steps does it take to reproduce the issue?
Open a page configured to display the Mirador viewer. If the view has not been given a name the top border of the viewer will display IIIF Manifest instead of the node or media's title.

• When does this issue occur?

• Which page does it occur on?

• What happens?

• To whom does it occur (anonymous visitor, editor, administrator)?

• What did you expect to happen?

The top bar should display the view's name if configured, falling back to the node's title if the view is untitled. The Islandora standard manifest view is untitled by default.

Which version of Islandora are you using?

2.x

Any related open or closed issues to this bug report?

Screenshots: