* Updated documentation for UCP to clarify roles of nodes in a Docker Swarm (#2637). Also updated architecture diagram to reflect new Enterprise engine branding.
* Further updated text and diagrams in Docker UCP architecture (#2637). Updated other architecture diagram to reflect name change.
* (#2637) Updated text size in UCP architecture diagram SVG.
* (#2637) Updated UCP architecture diagram 3. Removed arbitrary line breaks.
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