Merge pull request #42 from airbnb/jl--spinaltap-move-delay

introduce delay in destination before mapper apply

Merge pull request #41 from mosesn/mosesn/metrics-patch

spotlessApply

Merge branch 'master' into mosesn/metrics-patch

Merge pull request #40 from liallen-airbnb/master

Use empty database when database in binlog ddl event is set to system databases

spinaltap-common: Update metrics for the future

Merge pull request #39 from airbnb/erluo_li--tweak-state-history

Reduce even further

Tune state history default size.

Merge pull request #38 from airbnb/chending_fix_race_condition

add lock for schema manager to avoid race condiftion

Merge pull request #37 from airbnb/erluo_li--do-not-log-grants

Adjust additional statement logging when skipped.