Add :translate setting for include_blank and prompt
Allow i18n key for include_blank and prompt
Allow :t as a shorthand for :translate
Pluralize namespace for consistency
1.9 hash syntax
Merge pull request #616 from haines/include_blank_i18n

Add i18n for include_blank
Only translate prompts and include_blank if value is :translate
:lipstick:
Add CHANGELOG entry
Document new I18n keys in the generated config
Document include_blank and prompt I18n on README
Merge pull request #1020 from plataformatec/rm-translate-include-blank

Add i18n for include_blank and prompt