Changes

* http://developerwww.herts.mozillaac.orguk/enltdu/docstechnology/Gecko_Plugin_API_Referencewhat_is_a_plugin.html* http://developeren.mozillawikipedia.org/enwiki/docs/Gecko_Plugin_API_Reference:Plug-in_BasicsPlugin* http://wwwdeveloper.hertsmozilla.ac.ukorg/ltduen/technologydocs/what_is_a_plugin.htmlGecko_Plugin_API_Reference* http://endeveloper.wikipediamozilla.org/wikien/docs/PluginGecko_Plugin_API_Reference:Plug-in_Basics