Adjustments for deploying releases to Mvn central

- Packaging-type POM
- message for relocation
- project description and meta data

See https://issues.sonatype.org/browse/OSSRH-4501 for rationale.

build/maven/junit-dep-pom-template.xml

@@ -4,10 +4,50 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>junit</groupId>
     <artifactId>junit-dep</artifactId>
+    <packaging>pom</packaging>
     <version>@version@</version>
     <distributionManagement>
         <relocation>
             <artifactId>junit</artifactId>
+            <version>@version@</version>
+            <message>The artifact junit:junit does not contain Hamcrest anymore but declares a dependency to Hamcrest. Thus, junit:junit-dep has become obsolete.</message>
         </relocation>
     </distributionManagement>
+    <name>JUnit</name>
+    <url>http://junit.org</url>
+    <description>
+        JUnit is a regression testing framework written by Erich Gamma and Kent Beck.
+        It is used by the developer who implements unit tests in Java.
+    </description>
+    <organization>
+        <name>JUnit</name>
+        <url>http://www.junit.org</url>
+    </organization>
+    <mailingLists>
+        <mailingList>
+            <name>JUnit Mailing List</name>
+            <post>junit@yahoogroups.com</post>
+            <archive>
+                http://tech.groups.yahoo.com/group/junit/
+            </archive>
+        </mailingList>
+    </mailingLists>
+    <licenses>
+        <license>
+            <name>Common Public License Version 1.0</name>
+            <url>http://www.opensource.org/licenses/cpl1.0.txt</url>
+        </license>
+    </licenses>
+    <scm>
+        <connection>scm:git:git://github.com/KentBeck/junit.git</connection>
+        <developerConnection>scm:git:git@github.com:KentBeck/junit.git</developerConnection>
+        <url>http://github.com/KentBeck/junit/tree/master</url>
+    </scm>
+    <developers>
+      <developer>
+        <id>dsaff</id>
+        <name>David Saff</name>
+        <email>david@saff.net</email>
+      </developer>
+    </developers>
 </project>