Added plugin hooks to the context menu

* :view_issues_context_menu_start
* :view_issues_context_menu_end

  #3013

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2610 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/issues/context_menu.rhtml

@@ -1,4 +1,6 @@
 <ul>
+  <%= call_hook(:view_issues_context_menu_start, {:issues => @issues, :can => @can, :back => @back }) %>
+
 <% if !@issue.nil? -%>
 	<li><%= context_menu_link l(:button_edit), {:controller => 'issues', :action => 'edit', :id => @issue},
 	        :class => 'icon-edit', :disabled => !@can[:edit] %></li>
@@ -90,4 +92,6 @@
 	                        :class => 'icon-move', :disabled => !@can[:move]  %></li>
   <li><%= context_menu_link l(:button_delete), {:controller => 'issues', :action => 'destroy', :ids => @issues.collect(&:id)},
                             :method => :post, :confirm => l(:text_issues_destroy_confirmation), :class => 'icon-del', :disabled => !@can[:delete] %></li>
+
+  <%= call_hook(:view_issues_context_menu_end, {:issues => @issues, :can => @can, :back => @back }) %>
 </ul>