* Allow template files to be vaulted
* Make sure to import exceptions we need
* get_real_file can't take bytes, since it looks specifically for string_types
* Now that we aren't using open() we don't need b_source
* Expand playbooks_vault docs to include modules that support vaulted src files
* Add vaulted template test
* added docs for vault and made trigger shorter: !vault
* added single var valuting
* Update playbooks_vault.rst
Edit pass for spelling and grammar. Ship it!
* Update playbooks_vault.rst
Typo fixes.
