Further streamline the code.

Organize_Controller:
* Remove unnecessary constants
* Rename index() to dialog()
* Simplify _get_micro_thumb_grid

organize.js:
* Move sizing code in here from organize_dialog.html.php

organize_dialog.html.php:
* Move CSS and JS links in here so that we only load them when we need them.
* Move sizing code into organize.js

organize_thumb_grid.html.php:
* Move pagination logic in here, since it's view centric
* Collapse the css class determination code and inline it

modules/organize/views/organize_tree.html.php

@@ -1,6 +1,5 @@
 <?php defined("SYSPATH") or die("No direct script access.") ?>
 <li class="gOrganizeBranch ui-icon-left" ref="<?= $album->id ?>">
-
   <div id="gOrganizeBranch-<?= $album->id ?>" ref="<?= $album->id ?>"
        class="<?= $selected ? "gBranchSelected" : "" ?> gBranchText">
     <span id="gOrganizeIcon-<?= $album->id ?>" ref="<?= $album->id ?>"
@@ -16,4 +15,3 @@
     <? endforeach ?>
   </ul>
 </li>
-