Mercator layer changes

[shitesh]

Hi there
I just recently started playing with WorldWind Java, and in particular I've been using the Mercator layers. I've noticed a few issues/changes that I think would be necessary, and I was just wondering about the possibilities of having them committed/having the issues they address resolved. This is what I've got so far:

-- providing a setDetailHint method for MercatorTiledImageLayer, as exists for TiledImageLayer (see TODO note in like 46 of MercatorTiledImageLayer.java)
-- fixing a bug where isTileVisible in MercatorTiledImageLayer returns false when it shouldn't, causing the entire layer to vanish at certain view angles
-- making BasicMercatorTiledImageLayer implement BulkRetrievable, to allow bulk downloading

So should I formally report these issues somewhere? Can I upload patches of the changes I've made?