Refresh console documentation

The EnMasse documentation that references the console needs updating:

1. screenshot needs refreshing
2. "Using the EnMasse Console address filtering" needs revisiting. There is no longer a filtering syntax so the table describing the regular expressions can be removed. All pages offer filtering on the displayed column values, with a feature to specify textual values or pick from a dropdown.
3. Viewing message and connection statistics - the new console mostly exposes the same information but it is presented slightly differently. The contents of the tables need to be adjusted accordingly.
   1. Message ingress rate/Message egress rates are now messages per second, computed over the last five minutes.
4. Global DLQ information is not currently available from the Console (ENTMQMAAS-1777)
5. The authenticated users name is not currently available (ENTMQMAAS-1778)