initial plugin scaffolding script might be useful now while we expand it...

Paulo, 

This is a request for a partial pull.I don't think that my entire fork is ready to be pulled into the master. But, I do think that the plugin-builder tool could be pulled in now. It only creates the plug in folder hierarchy and drops in a the info java class and the plugin GWT config file for how. We won't have another version ready for a couple of weeks but this simple version is documented on the Wiki and could be of some small use for now.

kind regards,
-Rich