d863242538
This changes the ssh ready? method to treat ENETUNREACH the same way as EHOSTUNREACH errors. When attempting to SSH into a box, it tries up to 5 times to connect to the box, ignoring various errors. Later it will catch and gracefully handle most of those errors so that callers don't have to know the details. However, the Errno::ENETUNREACH error is not caught, which means that callers that expect a clean boolean return from ready? don't get that, and instead get an exception they probably aren't expecting.
Vagrant Core Plugins
These are plugins that ship with Vagrant. Vagrant core uses its own plugin system to power a lot of the core pieces that ship with Vagrant. Each plugin will have its own README which explains its specific role.