Merge pull request #353 from PikachuEXE/feature/change-translations-b…

…ehaviour

Expose `translations` in simple backend and load translations only when not loaded

lib/i18n/backend/simple.rb

@@ -59,17 +59,21 @@ def reload!
           super
         end
 
+        def translations(do_init: false)
+          # To avoid returning empty translations,
+          # call `init_translations`
+          init_translations if do_init && !initialized?
+
+          @translations ||= {}
+        end
+
       protected
 
         def init_translations
           load_translations
           @initialized = true
         end
 
-        def translations
-          @translations ||= {}
-        end
-
         # Looks up a translation from the translations hash. Returns nil if
         # either key is nil, or locale, scope or key do not exist as a key in the
         # nested translations hash. Splits keys or scopes containing dots