v6.0-beta.9

* Add a health check for getting a public key from the authentication service.

* Issue **#897** : Import no longer attempts to rename or move existing items but will still update content.

* Issue **#902** : Improved the XSLT `format-date` function to better cope with week based dates and to default values to the stream time where year etc are omitted.

* Issue **#905** : Popup resize and move operations are now constrained to ensure that a popup cannot be dragged off screen or resized to be bigger than the current browser window size.

* Issue **#898** : Improved the way many read only aspects of the UI behave.

* Issue **#894** : The system now generates and displays errors to the user when you attempt to copy a feed.

* Issue **#896** : Extended folder `create` permissions are now correctly cached.

* Issue **#893** : You can now manage volumes without the `Manage Nodes` permission.

* Issue **#892** : The volume editor now waits for the node list to be loaded before opening.

* Issue **#889** : Index field editing in the UI now works correctly.

* Issue **#891** : `StreamAppender` now keeps track of it's own record write count and no longer makes use of any other write counting pipeline element.

* Issue **#885** : Improved the way import works to ensure updates to entities are at least attempted when creating an import confirmation.

* Issue **#892** : Changed `Ok` to `OK`.

* Issue **#883** : Output streams are now immediately unlocked as soon as they are closed.

* Removed unnecessary OR operator that was being inserted into expressions where only a single child term was being used. This happened when reprocessing single streams.

* Issue **#882** : Splitting aggregated streams now works when using `FindReplaceFilter`. This functionality was previously broken because various reader elements were not passing the `endStream` event on.

* Issue **#881** : The find and replace strings specified for the `FindReplaceFilter` are now treated as unescaped Java strings and now support new line characters etc.

* Issue **#880** : Increased the maximum value a numeric pipeline property can be set to via the UI to 10000000.

* Issue **#888** : The dependencies listing now copes with external dependencies failing to provide data due to authentication issues.

* Issue **#890** : Dictionaries now show the words tab by default.

* Add admin healthchecks to stroom-proxy

* Add stroom-proxy docker image

* Refactor stroom docker images to reduce image size

* Add enabled flag to storing, forwarding and synching in stroom-proxy configuration

* Issue **#884** : Added extra fonts to stroom docker image to fix bug downloading xls search results.