{cli} Fix help messages in interactive command line (#428)

modes/shell/shell.go

@@ -70,14 +70,14 @@ func Initialize(settings *cli.Settings) (s *Shell, err error) {
 	}
 
 	s.commands = map[string]command{
-		"frameworks": {`choose frameworks to run (e.g. "ccm pyactr", "all")`, s.cmdFramework},
+		"frameworks": {`choose frameworks to run (e.g. "ccm pyactr", "all") - called without arguments, it will list active frameworks`, s.cmdFramework},
 		"history":    {"outputs your command history", s.cmdHistory},
 		"load":       {"loads a model: load [FILENAME]", s.cmdLoad},
 		"reset":      {"resets the current model", s.cmdReset},
 		"run":        {"runs the current model: run [INITIAL STATE]", s.cmdRun},
 		"version":    {"outputs version info", s.cmdVersion},
 
-		"help": {"exits the program", s.cmdHelp},
+		"help": {"outputs information about all available commands", s.cmdHelp},
 		"exit": {"exits the program", s.cmdExit},
 		"quit": {"exits the program", s.cmdExit},
 	}