[maven-release-plugin] prepare release xchart-2.6.0

pom.xml

-<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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.knowm.xchart</groupId>
 	<artifactId>xchart-parent</artifactId>
-	<version>2.6.0-SNAPSHOT</version>
+	<version>2.6.0</version>
 	<packaging>pom</packaging>
 	<name>XChart Parent</name>
 	<description>Basic Charts for Java Applications</description>
@@ -40,7 +39,7 @@
 		<connection>scm:git:git@github.com:timmolter/XChart.git</connection>
 		<developerConnection>scm:git:git@github.com:timmolter/XChart.git</developerConnection>
 		<url>git@github.com:timmolter/XChart.git</url>
-		<tag>HEAD</tag>
+		<tag>xchart-2.6.0</tag>
 	</scm>
 
 	<ciManagement>

xchart-demo/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.knowm.xchart</groupId>
 		<artifactId>xchart-parent</artifactId>
-		<version>2.6.0-SNAPSHOT</version>
+		<version>2.6.0</version>
 	</parent>
 
 	<artifactId>xchart-demo</artifactId>
@@ -17,7 +17,7 @@
 		<dependency>
 			<groupId>org.knowm.xchart</groupId>
 			<artifactId>xchart</artifactId>
-			<version>2.6.0-SNAPSHOT</version>
+			<version>2.6.0</version>
 		</dependency>
 	</dependencies>
 

xchart/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.knowm.xchart</groupId>
 		<artifactId>xchart-parent</artifactId>
-		<version>2.6.0-SNAPSHOT</version>
+		<version>2.6.0</version>
 	</parent>
 
 	<artifactId>xchart</artifactId>