only two tests need a fix. Starting to clear deprecation warnings.

app/models/spree/calculator/digital_delivery.rb

@@ -4,7 +4,7 @@ require_dependency 'spree/calculator'
 module Spree
   class Calculator::DigitalDelivery < Calculator::FlatRate
     def self.description
-      I18n.t(:digital_delivery)
+      Spree.t(:digital_delivery)
     end
 
     def compute(object=nil)

app/views/spree/admin/digitals/_digital.html.erb

@@ -1,5 +1,5 @@
 <% if digital.attachment_file_name.present? %>
   <%= digital.attachment_file_name %> (<%= number_to_human_size(digital.attachment_file_size) %>)
 <% else %>
-  <%=t 'broken_file' %>
+  <%=Spree.t 'broken_file' %>
 <% end %>

app/views/spree/admin/digitals/_form.html.erb

@@ -5,30 +5,30 @@
       <legend><%= Spree::Variant.model_name.human %> "<%= variant.options_text %>"</legend>
       
       <%= f.field_container :current_file do %>
-      <strong><%=t 'files' %>:</strong>
+      <strong><%=Spree.t 'files' %>:</strong>
       <% if variant.digital? %>
       <ul>
         <% variant.digitals.each do |digital| %>
         <li>
          <%= render digital %>&nbsp;&nbsp;
-         <%= link_to t("delete_file"), admin_product_digital_url(@product, digital), :confirm => t('delete_file_cofirmation', :filename => digital.attachment_file_name), :method => :delete %>
+         <%= link_to Spree.t("delete_file"), admin_product_digital_url(@product, digital), :confirm => Spree.t('delete_file_cofirmation', :filename => digital.attachment_file_name), :method => :delete %>
        </li>
        <% end %>
      </ul>
      <% else %>
-     <%=t 'none' %>
+     <%=Spree.t 'none' %>
      <% end %>
      <% end %>
 
      <p class="form-buttons">
       <%= f.field_container :file do %>
-      <%= f.label :file, t("new_file") %> <span class="required">*</span><br/>
+      <%= f.label :file, Spree.t("new_file") %> <span class="required">*</span><br/>
       <%= f.file_field :attachment %>
       <% end %>
 
       <%= hidden_field_tag 'digital[variant_id]', variant.id %>
 
-      <%= button t('spree_digital.upload') %>
+      <%= button Spree.t('spree_digital.upload') %>
     </p>
 
   </fieldset>

app/views/spree/digitals/_digital.html.erb

@@ -1,5 +1,5 @@
 <% if digital.attachment_file_name.present? %>
   <%= digital.attachment_file_name %> (<%= number_to_human_size(digital.attachment_file_size) %>)
 <% else %>
-  <%=t 'broken_file' %>
+  <%=Spree.t 'broken_file' %>
 <% end %>