***LINE**: Add LINE as alerting notification channel [#7301](https://github.com/grafana/grafana/pull/7301), thx [@huydx](https://github.com/huydx)
***LINE**: Adds image to notification message [#7417](https://github.com/grafana/grafana/pull/7417), thx [@Erliz](https://github.com/Erliz)
***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)
## 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)
