Improve Filterpane Template gsp

I would have few recommendation for improvement the gsp templates:

Use _filterpane folder instead of filterpane. It would be inline with fields plugin and the user can see the folder on the first look
Do not copy template files in Install script
- I think that if you leave the gsp in plugin they would be used if you won't rewrite them in your main plugin.
- This solution would not pollute the main project with
  unnecessary gsps
- This would requiere update of user doc
- Would have an issue with backwards compatibility

Do you think that this is a good improvement?

Grails-Plugin-Consortium / grails-filterpane