In breadcrumbs, use for the project's name nav.title if defined, pom.name otherwise.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@384052 13f79535-47bb-0310-9956-ffa450edef68

xdoc/src/plugin-resources/site.jsl

@@ -287,7 +287,7 @@
             </j:if>
             <j:if test="${!empty( breadcrumbsUsed )}">
               <jsl:applyTemplates select="$nav/body/breadcrumbs" />
-              <a href="${home}">${pom.name}</a>&#160;<span class="separator">&gt;</span>&#160;${_docTitle}
+              <a href="${home}"><x:if select="$nav/title">${_navTitle}</x:if><x:if select="not($nav/title)">${pom.name}</x:if></a>&#160;<span class="separator">&gt;</span>&#160;${_docTitle}
             </j:if>             
           </div>