Field of view adjust doesn't work

[tilsammans]

When I click the 'Adjust Field of View' button for an external site thumbnail, nothing happens and this is shown in the console:

TypeError: this.model.getFilePosition is not a function. (In 'this.model.getFilePosition(this.options.propertyName,"y")', 'this.model.getFilePosition' is undefined)

(issue transferred from codevise/pageflow-linkmap-page#6)

[tf]

The imagePositioning: false option has to be changed to positioning: false to prevent the button from being displayed.

The option has been renamed a long time ago and obviously nobody has noticed the remaining usage of the old name here. Can you take a look and test whether this solves the issue?

EDIT: One could of course also consider actually implementing field of view here. But I'm not sure it's worth it.

[tilsammans]

Seems to work, the button is gone. I will submit a pull request.

I found two references to imagePositioning by the way.