The `findInPages` function was supposed to search for a quote looking
at each of the page indexes in the input array, in order.

However because of the way that `next` was used, this function ended up
only searching the first page in the list. The `then(attempt, next)`
code was intended to try the current page and then move to the next in
the list if no match was found. However the `next` function is not
called if `attempt` throws in this context.

The `pdfContent` var in the test was renamed to `pdfPages` for clarity.