public void initializeCommandLine(AceCommandLine cmdLine) {
        this.commandLine = cmdLine;
        this.commandLine.setCommandLineListener(command -> execCommand(command));
    }
Bind command line and editor. For default implementation of command line
you can use <code> AceCommandLine cmdLine = new AceDefaultCommandLine(textBox) </code>
where textBox could be for instance standard GWT TextBox or TextArea.

@param cmdLine implementation of command line
stroom-core-client-widget/src/main/java/edu/ycp/cs/dh/acegwt/client/ace/AceEditor.java