Tweak diffstat css

Change-Id: I0f6551bb7ca2f9b8908e95359b375c23daeab380

src/main/java/com/gitblit/wicket/panels/DiffStatPanel.html

@@ -6,7 +6,7 @@
 <wicket:panel>
 <span class="hidden-phone hidden-tablet diffstat-total" wicket:id="total">[total]</span>
 <span class="diffstat-segments">
-	<i class="diffstat-add" wicket:id="insertions"></i><i class="diffstat-delete" wicket:id="deletions"></i><i wicket:id="blank"></i>
+	<i class="diffstat-insert" wicket:id="insertions"></i><i class="diffstat-delete" wicket:id="deletions"></i><i wicket:id="blank"></i>
 </span>
 </wicket:panel>
 </html>

src/main/resources/gitblit.css

@@ -615,10 +615,10 @@ pre.prettyprint ol {
 }
 
 .diffstat-segments {
-	vertical-align: top;
+	vertical-align: baseline;
 }
 
-.diffstat-add {
+.diffstat-insert {
 	color: #629E62; 
 }