OO-1068 css for contact form file attachments

src/main/java/de/tuchemnitz/wizard/helper/catalog/_content/catalogentryajaxadd.html

@@ -3,7 +3,7 @@
 	$r.translate("catalog.tree.add.intro", ["<br/><strong>$entryname</strong><br/>"])
 </p>
 $r.render("treeCtr")
-<div class="b_button_group">
+<div class="o_button_group">
 	$r.render("select")
 	$r.render("cancel")
 </div>
\ No newline at end of file

src/main/java/org/olat/modules/co/_content/attachments.html

-<table>
+<ul class="list-unstyled">
 	#foreach ($attachment in $attachments)
-	<tr>
-		<td><span class="b_with_small_icon_left ${attachmentCss.get($attachment.getName())}">${attachmentNames.get($attachment.getName())}</span></td>
-		<td> $r.render(${attachment.getName()})</td>
-	</tr>
+	<li>
+		<i class="o_icon o_icon-fw $r.getFiletypeIconCss($attachment.getName())"> </i>${attachmentNames.get($attachment.getName())}
+	</li>
 	#end
-</table>
+</ul>