Revert "Add scribe and commons codec to libs."

This reverts commit 0e121de7bc3c85008b3c10b0ba2460195199fc2f.
Revert "Basic scribe integration w/ flickr"

This reverts commit 047a7063da7677313b92f9591e79a59b6cbbaee9.
Switch from signpost to scribe
Better request handling and add post support
Added photos activity with grid of photos, added json response handler