- Provide default dashboard provider from upstream

- Update to version 5.3.2
* InfluxDB/Graphite/Postgres: Prevent cross site scripting (XSS) in query editor
* Postgres: Fix template variables error
* Cloudwatch: Fix service panic because of race conditions
* Cloudwatch: Fix check for invalid percentile statistics
* Stackdriver/Cloudwatch: Allow user to change unit in graph panel if cloudwatch/stackdriver datasource response doesn't include unit
* Stackdriver: stackdriver user-metrics duplicated response when multiple resource types
* Variables: Fix text box template variable doesn't work properly without a default value
* Variables: Fix variable dependency check when using ${var} format
* Dashboard: Fix kiosk=1 url parameter should put dashboard in kiosk mode
* LDAP: Fix super admins can also be admins of orgs
* Provisioning: Fix deleting provisioned dashboard folder should cleanup provisioning meta data
* Docker: adds curl back into the docker image for utility
- Update to version 5.3.1
* Render: Fix PhantomJS render of graph panel when legend displayed as table to the right
* Stackdriver: Filter option disappears after removing initial filter
* Elasticsearch: Fix no limit size in terms aggregation for alerting queries
* InfluxDB: Fix for annotation issue that caused text to be shown twice
* Variables: Fix nesting variables leads to exception and missing refresh
* Variables: Prometheus: Single letter labels are not supported
* Graph: Fix graph time formatting for Last 24h ranges
* Playlist: Fix cannot add dashboards with long names to playlist
* HTTP API: Fix /api/org/users so that query and limit querystrings works
- Update to version 5.3.0
* Stackdriver: Filter wildcards and regex matching are not yet supported
* Stackdriver: Support the distribution metric type for heatmaps
* Cloudwatch: Automatically set graph yaxis unit
- Update to version 5.3.0-beta3