v6.1.16

* Change names of hidden special table columns on dashboards to avoid name clashes.

* Make dashboard table settings popup bigger to accomodate the conditional formatting.

* Added logic to rename conditional formatting term fields on a column rename.

* Added logic to prevent renaming a column to an existing name.

* Issue **#1872** : Partially fixed to show the 1st 1k chars of the single line raw source. Full fix will come in v7.

* Issue **#1874** : Fixed dashboard tables not showing data if the stream id column is present.

* Issue **#1868** : Stop `Stream not found with id=nnn` errors during searching.