environment for OS class final project
First run setup-env.sh to clone the environment. Most of the files come from various git repositories, but some of the files are in this repository, such as 'nginx-app'.
In order to test anything with the network, you will need a bridge. I am lazy, so usually I just install virt-manager, which installs lib-virt as a dependency which automatically creates a bridge called 'virbr0'. The other scripts depend on the bridge having this name (such as qemu-ifup).
The nginx-app requires a config file. Copy the 'config' file into .config before running 'make'.
Updated apps/hellobsd/README.txt with instructions on how to build and run the FreeBSD app as a unikraft unikernel.