CC-1919:Playlist builder show time offset

Fixed.

- I wasn't sure if I had to wait for html/css code from Vladmir.
I just did what I could do.

airtime_mvc/application/views/scripts/playlist/update.phtml

@@ -15,6 +15,7 @@
             </div>
             <div class="text-row">
                 <span class="spl_artist"><?php echo $item["CcFiles"]['artist_name'] ?></span>
+                <span class="spl_offset"><?php echo $item["offset"]?></span>
             </div>
             <?php if($i < count($this->pl->getContents()) -1): ?>
             <div id="fade_<?php echo $i ?>" class="spl_fade_control ui-state-default"></div>