i18n cleanup (affects foodcoops#137)

app/views/finance/balancing/_edit_results_by_articles.html.haml

@@ -1,14 +1,14 @@
 %table.ordered-articles.table.table-striped
   %thead
     %tr
-      %th= sort_link_helper t('.article'), "name"
-      %th= sort_link_helper t('.number'), "order_number"
+      %th= sort_link_helper Article.model_name.human, "name"
+      %th= sort_link_helper Article.human_attribute_name(:order_number_short), "order_number"
       %th= t('.amount')
-      %th= t('.amount_per_unit')
+      %th= heading_helper Article, :units
       %th= t('.net')
       %th= t('.gross')
-      %th= t('.tax')
-      %th= t('.refund')
+      %th= heading_helper Article, :tax
+      %th= heading_helper Article, :deposit
       %th{:colspan => "2"}
         = link_to t('.add_article'), new_finance_order_order_article_path(@order), remote: true,
           class: 'btn btn-small'

app/views/finance/balancing/_group_order_articles.html.haml

@@ -3,7 +3,7 @@
     %thead
       %tr
         %td
-        %td{:style => "width:8em"}= t('.group')
+        %td{:style => "width:8em"}= Ordergroup.model_name.human
         %td= t('.units')
         %td= t('.total')
         %td{:colspan => "3",:style => "width:14em"}

app/views/finance/balancing/_order_article.html.haml

@@ -5,7 +5,7 @@
   = order_article.units_to_order
   - unless order_article.ordered_quantities_equal_to_group_orders?
     %span{:style => "color:red;font-weight: bold"} !
-%td= order_article.price.unit_quantity.to_s + ' * ' + order_article.article.unit.to_s
+%td #{order_article.price.unit_quantity} × #{order_article.article.unit}
 %td
   = number_to_currency(order_article.price.price, :unit => "")
   :plain
@@ -16,7 +16,7 @@
   :plain
     /
   = number_to_currency(order_article.total_gross_price, :unit => "")
-%td= order_article.price.tax
+%td #{order_article.price.tax}%
 %td= order_article.price.deposit
 %td
   = link_to t('ui.edit'), edit_finance_order_order_article_path(order_article.order, order_article), remote: true,