Replace the hardcoded CustomField::FIELD_FORMATS with a class.

Custom Field Formats are now full objects and can be registered with
Redmine::CustomFieldFormat to add new formats.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3672 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/custom_fields/_index.rhtml

@@ -14,7 +14,7 @@
 	<% (@custom_fields_by_type[tab[:name]] || []).sort.each do |custom_field| -%>
 		<tr class="<%= cycle("odd", "even") %>">
 			<td><%= link_to custom_field.name, :action => 'edit', :id => custom_field %></td>
-			<td align="center"><%= l(CustomField::FIELD_FORMATS[custom_field.field_format][:name]) %></td>
+			<td align="center"><%= l(Redmine::CustomFieldFormat.label_for(custom_field.field_format)) %></td>
 			<td align="center"><%= checked_image custom_field.is_required? %></td>
 			<% if tab[:name] == 'IssueCustomField' %>
 			<td align="center"><%= checked_image custom_field.is_for_all? %></td>