Update lots of stuff; migrating laptops

* Create new apps layout
* Fix Makefile shell command to set to APPS
* Update barrow app README.md
* Update rebar dependencies to riak_X 2.0.0beta1 tag
* Provide basic stub for vnode implementation (coming soon)
Add Barrow's photo to README
Add photo to hughes OTP app README
Merge pull request #2 from mbbx6spp/update-stuff

Initial stub of a riak_core project and outline.