add start and end date fields

Author: eyewritecode

app/views/resource_items/_form.html.erb

@@ -2,6 +2,8 @@
 
 <div class="box tabular">
   <p><%= f.text_field :name, required: true, size: 25 %></p>
+  <p><%= f.date_field :start_date %></p>
+  <p><%= f.date_field :end_date %></p>
   <% if categories.any? %>
     <p><%= f.select :category_id, categories.sorted.map{|c|[c.name, c.id]}, label: l(:field_resource_category), include_blank: true %></p>
   <% end %>