Update leiningen target to use latest stable release
Install bio-linux and bio-linux-keyring in minimal edition to bootstrap installs. Thanks to @roryk
Rename deploy setting property cloudbiolinux_flavor to flavor to reflect greater integration. Remove note about it being untested. Add property target to optionally specify install_biolinux target.
Refactor argument processing to remove code duplication. Allow target and flavor to be specified as arguments (this is optional and if present will take precedence of value in settings file).
Tell ssh to ignore hosts file, my OpenStack deployment recycles IPs frequently.