fog/fog — pull request #2826 by yannh (2014-04-07 17:00:39+00:00)
Title: ISSUE-2824 Adding user_data to rackspace provider

I tried to follow the style of this patch:
https://github.com/xtoddx/fog/commit/24e4bae57fafe2f846c06554d4cf4b790466ecba

So you can actually submit user_data encoded or not

resolve #2824