Update the easy_translate to v0.5.1 (#275)
Update the easy_translate to v0.5.1 (#275)

It has:
* Add license to gemspec (MIT)
* Update googleapi hostname to support premium (NMT)
* Remove json gem dependency

Details:
https://github.com/seejohnrun/easy_translate/compare/v0.5.0...v0.5.1
glebm/i18n-tasks,bartimaeus/i18n-tasks