Add ability to pass environment variables to shell exec
Vagrant driver passes environment down to shell
Bubble up rake task spec failures and don't exit
Added ability to specify environment variables for vagrant up

This makes the specified environment variables available to the vagrant up shell command
Added ability to pass environment variables to vagrant provision
Added environment variables support for vagrant task
Need to convert environment keys to strings for make mixlib shell happy
Output env vars and timeout
Bump version
Merge pull request #6 from daptiv/pass-environment-vars

Pass environment vars