Refactored code to use simple_form instead of tribunals.yml for label information
Corrected intermitent error for locale in invitations feature
Reconfigured display/form labels for utaac
Refactored tribunals.yml file and moved into simple_form.yml
Refactored set_default_locale into one function
Merge pull request #141 from ministryofjustice/refactor_simple_form_i18

Refactor simple form i18