Even more test cleanup 

Make sure we have cards before we try to fetch favorite status for them

Frontend admin setup fixes

Tiniest tweak for sync error logging 

fix metric and segment builders

Return integers when appropriate for Druid date bucketing 

Fix n+1 DB calls in GET /activity  

Log backing DB type during launch 

fix Object detail page punctuation

Logic tweaks for admin setup 

* use isomorphic fetch

* shrinkwrap

* shrinkwrap round 2

* shrinkwrap round 3

* Clean npm install + shrinkwrap + bump node/npm versions

Update README.md

More test cleanup 

metabase.mock.* -> metabase.test.mock.* 

Remove a couple lines that are no longer needed 

Bump dependencies 

Endpoints for listing all segments/metrics