Pull request

[abbadon1334]

i have make some changes to make it working again, feel free to merge it.

[mre]

Thanks @abbadon1334,
these are all very great changes. 😊
One more thing before we merge: could you change the .travis.yml to test on 7.2 instead of 5.x? This way, the build would be green again. I think this sections needs some updating:
https://github.com/mre/PHPench/blob/master/.travis.yml#L4-L7

[abbadon1334]

thank to you.
feel free to add the others : https://github.com/abbadon1334/PHPench

I think the original MedianAggregator was wrong, i think i fixed it.

[mre]

Whoop whoop. Thanks! 🎃