[maven-release-plugin] prepare release performance-1.15

pom.xml

@@ -1,5 +1,4 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.jenkins-ci.plugins</groupId>
@@ -9,7 +8,7 @@
 
     <artifactId>performance</artifactId>
     <packaging>hpi</packaging>
-    <version>1.15-SNAPSHOT</version>
+    <version>1.15</version>
     <name>Performance plugin</name>
     <url>http://wiki.jenkins-ci.org/display/JENKINS/Performance+Plugin</url>
 
@@ -24,7 +23,7 @@
     <scm>
         <connection>scm:git:git://github.com/jenkinsci/performance-plugin.git</connection>
         <developerConnection>scm:git:git@github.com:jenkinsci/performance-plugin.git</developerConnection>
-        <tag>HEAD</tag>
+        <tag>performance-1.15</tag>
     </scm>
 
     <dependencies>