Clean up the alignment and remove that dodgy little "strich" thing from tigris (overridden in maven.css rather than removed from tigris)

PR: MAVEN-579


git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113661 13f79535-47bb-0310-9956-ffa450edef68

xdoc/src/plugin-resources/css/maven.css

@@ -102,4 +102,9 @@ h3, h4 {
 img.handle {
  border: 0;
  padding-right: 2px;
+}
+
+#navcolumn div div  {
+ background-image: none;
+ background-repeat: no-repeat;
 }