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.

Improvements

• 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.

Bug fixes

• 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.