Fixed GPL wording.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@4077 b35dd754-fafc-0310-a699-88a17e54d16e

documentation/docs/plugin-dev-guide.html

@@ -384,8 +384,9 @@ so it also deletes the directory.</p>
 
 <b>What license agreement are plugins subject to?</b>
 <p>Because Wildfire is released under the Open Source GPL license, any plugins developed
-must also be released under the GPL or a compatible Open Source license. It is a
-violation of the license agreement to create plugins that are not Open Source. Please visit 
+must also be released under the GPL or a compatible Open Source license if you distribute
+the plugins outside your organization. It is a violation of the license agreement to create
+plugins for distribution that are not Open Source. Please visit
 <a href="http://www.jivesoftware.com/products/wildfire/">Jive Software</a> if you need different
 licensing terms for Wildfire, including the right to create commercial plugins.</p>