Now the "MAPS USING THIS LAYER" box in map details page is populated (Fixes #569).
Merge pull request #570 from capooti/issue-569

Now the "MAPS USING THIS LAYER" box in map details page is populated 
fix typo in link type
Added opencyclemap base layers since mapbox streets does not seem to be available anymore
Geoserver extensions are now outside of the tree
Pull geoserver artifacts from the web