Merge pull request #206 from zolzaya/master

Fill in missing datetime/helpers/translations/template/number/prompts with their en-US
Updated CHANGELOG.md
Bump version to 0.6.0
Fixed errors.messages.wrong_length resource in mn locale

The errors.messages.wrong_length key has pluralizer subkeys so
shouldn't have it's own value as well.
Merge pull request #207 from tomhughes/master

Fixed errors.messages.wrong_length resource in mn locale
Fix yaml syntax of mn lcale
Bump version to 0.6.1
Tentative fix for Ruby 1.8
Improvements for 1.8 support

* set unicode mode in railtie too;
* clean up Ukrainian transliteration;
* add 1.8.7 and 1.9.3 MRI to the Travis config.
Make .travis.yml valid
Bump version to 0.6.2
Updated "See also" section of README.md
Update MIT-LICENSE.txt
Update i18n-spec
Corrected en-IN.yml
Replace "Rs" with "₹" of en-In.yml (#218)
Update Hebrew plural rule
Bump version to 0.6.3
croatian pluralizations
Merge pull request #221 from dmilisic/master

Pluralization fixes for croatian (hr.yml)