[Data Sources] Implement Apache Drill#3188

Merged

arikfr merged 5 commits intogetredash:masterfrom nuviad:drill

Jan 10, 2019

+321-116

Commits on Dec 13, 2018

Commits on Dec 14, 2018

Improvements in Drill query runner and minor refactoring
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Merge branch 'drill' of https://github.com/nuviad/redash into drill
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committed

Commits on Dec 25, 2018

Merge branch 'master' into drill
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