Use template_preprocess_block to add block edit links

I have created a patch that changes the way links are added. Instead of being dependant on JavaScript they are added via template_preprocess_block.

I have also added edit links for menu blocks. Clicking one of these links will take you to the relevant menu edit page to edit the menu items.

I'm really not sure if this should be committed since it would stop the module being so easy to install. All users would have to edit their block templates to add the print $block_edit_links .

Here is a sample block.tpl.php which works with the attached patch:

<div id="block-<?php print $block->module . '-' . $block->delta ?>" class="block block-<?php print $block->module ?>">

  <?php print $block_edit_links ?>

  <?php if ($block->subject): ?>
    <h2 class="title"><?php print $block->subject ?></h2>
  <?php endif ?>

  <div class="content">
    <?php print $block->content ?>
  </div>

</div>