add app bar and move edit description

this also adds an icon to the app bar as we have it for freestyle
projects.

pom.xml

@@ -15,7 +15,7 @@
     <properties>
       <changelist>999999-SNAPSHOT</changelist>
       <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
-      <jenkins.version>2.440.3</jenkins.version>
+      <jenkins.version>2.461-rc34998.da_5964da_3eb_b_</jenkins.version>
       <spotbugs.skip>true</spotbugs.skip> <!-- Clean up redundant null check warnings and re-enable after SECURITY-1339 is released -->
     </properties>
     <licenses>

src/main/resources/hudson/matrix/MatrixProject/index.jelly

@@ -27,11 +27,24 @@ THE SOFTWARE.
   <l:layout title="${it.name}">
     <st:include page="sidepanel.jelly" />
     <l:main-panel>
-      <h1 class="matrix-project-headline page-headline">${%Project} <l:breakable value="${it.displayName}"/></h1>
+      <div class="jenkins-app-bar">
+        <div class="jenkins-app-bar__content jenkins-build-caption">
+          <j:set var="lastBuild" value="${it.lastBuild}" />
+          <j:if test="${lastBuild != null}">
+            <a href="${rootURL + '/' + lastBuild.url}" class="jenkins-!-display-contents" tabindex="-1">
+              <l:icon src="symbol-status-${lastBuild.iconColor.iconName}" tooltip="${lastBuild.iconColor.description}"/>
+            </a>
+          </j:if>
+          <h1 class="matrix-project-headline page-headline"><l:breakable value="${it.displayName}"/></h1>
+        </div>
+        <div class="jenkins-app-bar__controls">
+          <t:editDescriptionButton permission="${it.CONFIGURE}"/>
+        </div>
+      </div>
       <j:if test="${it.name!=it.displayName}">
         ${%Project name}: ${it.fullName}
       </j:if>
-      <t:editableDescription permission="${it.CONFIGURE}"/>
+      <t:editableDescription permission="${it.CONFIGURE}" hideButton="true"/>
 
       <st:include page="makeDisabled.jelly" />