automenu 6.x-1.0

Essentially this is a copy of the dev release that has been around for quite a long time. We are using this in a large number of production sites and are fairly confident that it is stable enough. Because we are going to release some major changes in a 6.x-2.x version we're marking this 6.x-1.0 version as final such that we can move on with a new major version.