[maven-release-plugin] prepare release installation-5.15

Author: mmoqui

pom.xml

@@ -10,15 +10,15 @@
   <packaging>pom</packaging>
   <groupId>com.silverpeas</groupId>
   <artifactId>installation</artifactId>
-  <version>5.15-SNAPSHOT</version>
+  <version>5.15</version>
   <name>Silverpeas Installation Package - ${project.version}</name>
   <description>Builds the Silverpeas installation package</description>
 
   <scm>
     <developerConnection>scm:git:git@github.com:Silverpeas/Silverpeas-installer-package.git</developerConnection>
     <connection>scm:git:git@github.com:Silverpeas/Silverpeas-installer-package.git</connection>
     <url>http://github.com/Silverpeas/Silverpeas-installer-package</url>
-    <tag>HEAD</tag>
+    <tag>installation-5.15</tag>
   </scm>
 
   <repositories>