Re-run tests for v1.1.1

[PabloCastellano]

Hello.

Dgraph v1.1.1 has been released recently, would you mind adding the results for this version? I would expect some notable improvements after one year.

There aren't many public benchmarks for dgraph yet and I found this one very interesting. Thanks!

[linuxerwang]

Unfortunately, I do not have access to the abundant server resources for the test any more. I suggest you find some resources and test it by yourself. Good luck.

[ganisback]

very interesting, would you help add a new test with latest version?