The script tends to include all commands that are included via a js
file.  However in the case of multiple instances it may be that some
commands are enabled for one instance and commands are disabled for
another instance.  This little bit of code will ensure any disabled
options don't show up even when an include file is present.

For plug-in functionality additional events may need to propagate on
click events.  To allow element local events to fire but prevent parent
element click events from firing stopPropagation should be used instead
of stopImmediatePropagation.