[jboss-as7-dev] cli: default tab completion list

WRT https://issues.jboss.org/browse/AS7-2243 Tab completion for operations should show low-level operations Brian suggests to include operations in the list of commands shown by the tab completion when the line is empty. The original idea was to make an accent on the commands with the hope that operations will be used only in special/advanced cases. Which is still the direction to follow. So, by default the cli is in the command completion mode. Operation request completion is triggered by '/', './' or ':'. This is actually consistent with the bash shell too, where by default you get a list of commands, scripts are not included, you'd have to start with './'. Although, './' is listed there before all the commands as an option, which is not the case in the cli. IMO, the current impl is cleaner. Votes, suggestions? Thanks, Alexey