[openstreetmap-website] Add Wikidata-links to browse-helper (#786)

[Florian Schäfer]

This pull-request adds links to the corresponding item on [WikiData](www.wikidata.org) into the browse-helper similar to the wikipedia-tags. For now it's much simpler than with the wikipedia-tags, because it only takes the plain wikidata-tag into consideration (no namespaced tags like operator:wikidata) and also restricts the values to only `/[Qq][1-9][0-9]*/`.

I'll surely add the namespaced tags mentioned on the [WikiData-proposal-page](http://wiki.openstreetmap.org/wiki/Proposed_features/Wikidata) soon, because they are quite common (Streets/buildings named after or operated by a person/organization, …).

Another thing I'd find quite interesting would be, to show the wikidata-label additionally to the link. Either next to the link and somehow visually separated to show that this label is __not__ part of the tag-value, or in the text which appears when hovering the link.
This would make it much easier for a user to "encrypt" the wikidata-values.
Would this be a good idea?
Just wanted to ask before I put work into it.
You can merge this Pull Request by running:

  git pull https://github.com/floscher/openstreetmap-website wikidata-links

Or you can view, comment on it, or merge it online at:

  https://github.com/openstreetmap/openstreetmap-website/pull/786

-- Commit Summary --

  * Added wikidata-links to the browse-helper (atm just the ones without namespaces).
  * Added tests for wikidata-links in the browse-helper

-- File Changes --

    M app/helpers/browse_helper.rb (12)
    M config/locales/en.yml (1)
    M test/helpers/browse_helper_test.rb (27)

-- Patch Links --

https://github.com/openstreetmap/openstreetmap-website/pull/786.patch
https://github.com/openstreetmap/openstreetmap-website/pull/786.diff

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/786
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