Unpublished queries can be added to dashboards from the query page

[madalincm]

Steps to Reproduce:

1. Open an unpublished query: https://pipeline-sql.stage.mozaws.net/queries/394/source#486
2. Click on the plus button next to the "Table" text
3. Search for a dashboard and add the query to that dashboard
4. Open the dashboard where you added the query: https://pipeline-sql.stage.mozaws.net/dashboard/dashboardunpublishedquery

Expected results:

The query is not added to the dashboard.

Actual results:

The query is added to the dashboard

Notes/Issues:

Verified in FF61(Win7). Issue can be reproduced in STMO-stage

[emtwo]

I confirmed that you can still add published queries which is most important. This is currently a feature that only exists in stmo but is in the process of being ported upstream (getredash#2656) I left a note there so that this is taken into account during the port.

[alison985]

This is now part of this upstream PR: getredash#2767

[rafrombrc]

Made another request for review of the latest revisions, hope to see this merged v soon.

[alison985]

This was merged upstream.