vagrant: pass through --yes to vagrant as --force
add runtime dependencies for vendored gems to gemspec
add vagrant requirement to to gemspec
added 'nodes_like_me' macro
leap inspect now works with all .json files
changed `leap init` to `leap new`, made more foolproof.
added ability to have 'default' entries in json files.
improve `leap node add` by auto creating cert and validating ip_address