Updated Gemfile dependency
 * Bumped Vagrant v1 to 1.0.7
Updated README and added DEVELOPMENT
 * Updated README to only use Vagrant 1.1+ examples. Few re-wording here
   and there.
 * Added a DEVELOPMENT.md file to describe how to develop Nugrant.
Fixed user parameters command
 * Command now prints parameters correctly.
 * Added a __to_hash() method to transform Bag into a plain hash for easier
   processing.
Removed dependency on deep_merge
 * We now perform our own merge stuff. Array are merged but not deep merge.
Added possibility to iterate through keys via .each method
Release version 1.1.0