Included rails-i18n and included locale settings
Merge branch master
Merge branch master
Started translation and added some gems to help
Added Devise translations
Finished index translations
Did invoices controller translations
Implemented edit account feature and closed #23.
Merge pull request #26 from henriquecf/23-user-can-edit-account

Implemented edit account feature and closed #23.
Removed duplication in invoices controller spec.
Corrected devise views after i18n of them
Added group name when adding new invoice
Started translation for groups
Merge branch master
Implemented group show feature.
Implemented list groups feature.