css: vertically align the cgit logo image

When embedding cgit in other pages, the logo alignment needs to be
specified to avoid any css rules from the embedding page to make the
page look bad.

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>

cgit.css

@@ -31,6 +31,7 @@ div#cgit table#header {
 
 div#cgit table#header td.logo {
 	width: 96px;
+	vertical-align: top;
 }
 
 div#cgit table#header td.main {