upgraded parent pom

Author: hboutemy

pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <groupId>org.codehaus.plexus</groupId>
     <artifactId>plexus</artifactId>
-    <version>5.0</version>
+    <version>5.1</version>
   </parent>
 
   <artifactId>plexus-archiver</artifactId>
@@ -17,7 +17,7 @@
     <connection>scm:git:[email protected]:codehaus-plexus/plexus-archiver.git</connection>
     <developerConnection>scm:git:[email protected]:codehaus-plexus/plexus-archiver.git</developerConnection>
     <url>http://github.com/codehaus-plexus/plexus-archiver</url>
-    <tag>HEAD</tag>
+    <tag>master</tag>
   </scm>
   <issueManagement>
     <system>jira</system>