Dev beta 0.2.0 lucidhack
- Updated README.md to include setup-archlinux.sh.
- Added README.md to subdirectories in books.
- Removed the two commented out ulimit comments from setup-archlinux.sh.
- Rename setup-bare-metal.sh to setup-ubuntu.sh
- Added public-domain test book 'The Naval War of 1812' with MD5 hash 94da13f6f8e1e90d85da453e974c7f23 a640048b (see issue #55)