COOK-4061 Create virtualenv directory recursively if it doesn't exist

[comandrei]

No description provided.

[coderanger]

👎 on this. The use of the recursive flag almost always means you aren't correctly managing owner/group/mode on the intervening directories. Is there any reason for this beyond ease of use?

[comandrei]

I have been having issues with application_python's gunicorn subresource. For some reason the initial deploy fails because the intervening directories aren't created when gunicorn's before_deploy action is executed.
Perhaps the issue is in application_python, but I haven't found a way to fix it in that recipe.
Perhaps this is more detailed http://stackoverflow.com/questions/20351292/application-python-failing-to-install-gunicorn-on-first-deploy

[comandrei]

Will re-submit a pull request after moving the fix to a branch in my fork