Clean up imports in build.sbt
Clean up imports in build.sbt

slamdata/slamengine,djspiewak/quasar,slamdata/quasar,quasar-analytics/quasar,quasar-analytics/quasar,slamdata/slamengine,quasar-analytics/quasar,quasar-analytics/quasar,slamdata/slamengine