Fixing identification issues with the configuration plugin.
Updating SSH timings in the base Fog and Vagrant machine providers.
Fixing localization string reference in the node destroy action provider.
Adding a keypair accessor/modifier and setting when attaching keys in the base node plugin.
Adding a key cache directory and fixing some action provider calls in the base network plugin.
Updating SSH and private key functionality in the Vagrant configuration class and SSH machine mixin to make it compatible with Nucleon SSH changes.