Adding a button.

http://docs.joomla.org/Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_03
Signed-off-by: Richard Quadling <RQuadling@GMail.com>
Ignore zip files produced by archiving component.

Signed-off-by: Richard Quadling <RQuadling@GMail.com>