a645ce3c25
Use `mask` option for defining subnet on network configuration. Allow options to be passed through using hash scoping and docker_network and docker_connect prefixes. Enable public networks. Allow configuration to define pre-existing networks by name.
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.