Goto new entry when importing by doi

[Hugo-Heagren]

When I import by doi, the selected entry remains the same. For me its pretty intuitive that I would always want to select the new entry (and indeed, always do immediatley jump to it). Could this be part of the default behaviour of ebib-biblio-import-doi? This seems simple, so I would have just submitted a PR, but I've just tried knocking up a simple way of making it happen and found it really hard!

[joostkremers]

You can simply use ebib--goto-entry-in-index followed by ebib--update-entry-buffer. See, e.g., ebib-jump-to-entry, where this is done. (In the DOI case, you won't need to account for the possibility that you need to switch to another database, as ebib-jump-to-entry does.)

BTW, I just rewrote ebib--goto-entry-in-index using text-property-search-forward, because I suspect it's more efficient than what I did before. (Though I haven't timed it and thinking about it a bit more, it may not actually be... But it may not really matter, because even on my lowly quad-core Pentium, jumping is still instantaneous.)

Anyway, using ebib--goto-entry-in-index is the way to go.

[gkowzan]

I also didn't see a way to do that by making changes localized to ebib-biblio-import-doi, so I also modified ebib-import-entries and ebib--bib-find-bibtex-entries to return the list of added entry keys. #241

[gkowzan]

I rewrote the previous pull request to use biblio-doi-forward-bibtex with a callback function. The previous version sometimes failed to work with asynchronous url retrieval.