Deal with more than 50 entries

[symac]

Even if the library has not been updated for three years, I am adding this in case someone wants to have a look at it. There is still a comment saying :
// TODO deal with more than 50 entities

Would be great :)

[kennethsn]

I am unfortunately rather new to making PR's after forking so I do not want to mess anything up, but I integrated a SPARQL query to allow unlimited Wikidata labels to be supported. HERE
If this is the fix you all would like to use, I will gladly make a pull request!

My team at Yale University is currently working on using qLabel in our application: "Wikidata For Digital Preservation"

Thank you all for this terrific tool!

[tomayac]

I left a comment in your code, apart from that, it looks mostly good and could probably easily be merged in.