Flow 1.8.0

New features

There is a new search functionality which allows users to filter contexts by name and status. Admin can also search by context owner.
We now offer multi-document support, with users able to open several contexts simultaneously.
You can now export your context as an image.
There's a new discarded output port for the Joint unit.

Added logout endpoint for token invalidation.
New anti-flooding mechanism for EmailSink unit.
DevoFullQueryUnit, SyslogSenderUnit, TimeWindowCollectorUnit and JoinUnits now accept both Long and Date in the timestamp field.
Improve logging by printing context memory statistic periodically and each time the release memory algorithm is launched.
API change: GET / contexts now return lists of accessible contexts and admin status.

We've fixed an issue on the DevoFullQueryReader that was mixing event data among output ports.
Reducer and CountWindowCollector units now send events outside critical sections to avoid deadlocks.
Fix NullPointerException in DevoManagedQuery unit that was making the unit unusable.
Catch global exceptions from DevoManagedQuery and ManagedQuery units to ensure that units continue working and sending errors across their ports.
When users load a context it is now well-centered in the canvas.
Fixed the UI crashing when closing a log with selected events.