Update dependencies snyk reports as vulnerable#13

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esarafianou wants to merge 4 commits into

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Commits on Dec 13, 2018

Major update to non vulnerable lodash version
Eva Sarafianou
committed
Major ms update to non vulnerable version
Eva Sarafianou
committed

Commits on Jan 25, 2019

Use node 6 and 8 in tests instead of 4 and 5
Eva Sarafianou
committed
Update shard tests
Eva Sarafianou
committed