Completing fix to #438
Merge branch 'MAX-11' into develop
Addition of the list command to the debugcli to list servers,
services, listeners and sessions
Merge branch 'develop' of github.com:skysql/MaxScale into develop
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printed message modified
Merge branch 'develop' of github.com:skysql/MaxScale into develop
Updated documentation of the debug CLI to include the new list commands
Updated table of contents