***Hipchat**: Adds support for sending alert notifications to hipchat [#6451](https://github.com/grafana/grafana/issues/6451), thx [@jregovic](https://github.com/jregovic)
***Alerting**: Uploading images for alert notifications is now optional [#7419](https://github.com/grafana/grafana/issues/7419)
***Dashboard**: Adds shortcut for collapsing/expanding all rows [#552](https://github.com/grafana/grafana/issues/552), thx [@mtanda](https://github.com/mtanda)
***Alerting**: Adds de duping of alert notifications [#7632](https://github.com/grafana/grafana/pull/7632)
## Minor Enhancements
***Optimzation**: Never issue refresh event when Grafana tab is not visible [#7218](https://github.com/grafana/grafana/issues/7218), thx [@mtanda](https://github.com/mtanda)
