Elasticsearch: fix for issue when saving dashboard with title equal to slugified url, would cause the backward compatible fix to delete it, Closes #828
Graph: fix for downscaling y-axis format, never downscale when value is zero, Fixes #826
Support fields from nested objects pulled from Elasticsearch
Give maximum width & height constraint to tooltip boxes

Extreme values that go beyond the screen resolution are very likely to be misplaced. This is a simple workaround. A better solution would be to improve the code placing the tooltip and make it handle tooltips containing more content than they can safely display.
Annotations: Elasticsearch annotation and field mapping fixes, small changes for PR #830
Fixed spelling in config.sample.js
Changed color for warning alert
changed placement of color selector popup
Dashboard: when opening search or dashboard settings, click the icon again will now hide the view, Closes #836
Merge branch 'master' of github.com:grafana/grafana