updates README with latest version
user roles refactoring
fixes security group rule class name
add a test for security group rules
fixes a type in floating ip test error message
optimize the fallback to the original message value
Version bump to 0.5.0
Minor fixes to docs and commets
flavor refactoring and fixes
* add swap and is_public attributes
* more precise validations
fixes validations
adds validations
fixes validations
updates gem version
new unit tests and existing tests refactoring
updates Gemfile
Regenerate gemspec for version 0.5.0
fixes I18n translations for server statuses
Version bump to 0.5.1
Merge pull request #15 from dguerri/master

Update to version 0.5.1