ca0fd64ded
Prior to this commit, the docker compose driver would _always_ path expand a host volume no matter what. This is not always the correct option, for example if that host volume is actually a reference to a key inside a `volumes` hash instead of a path on disk. This commit changes that by looking to see if the requested host volume is actually a defined key inside the compose config, and if not, it will path expand it like before. Otherwise it will leave the key "as is".
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.