Changes on 11-05-11:

• Added a help file for 'Matching Aliases' since the command gives not even a vague hint about what it does.
• The "Attempt to match unknown commands to metafrequency labels" communicator option is now enabled by default. If you had it explicitly disabled before, you'll probably need to disable it again. Updated HELP COMMUNICATORS to reflect that metafrequency labels are commands and aliases now.