[ML] Fix influencer count and influence calculation#150

Merged

hendrikmuhs merged 5 commits intoelastic:masterfrom

hendrikmuhs:fix-#24

Jul 11, 2018

Commits on Jul 9, 2018

use the correct bucket count
Hendrik Muhs
committed

Commits on Jul 10, 2018

reactivate unit test
Hendrik Muhs
committed
add extra checks for influencer calculations
Hendrik Muhs
committed
add changelog entry
Hendrik Muhs
committed

Commits on Jul 11, 2018

address review comments
Hendrik Muhs
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