Revert "[maven-release-plugin] prepare release xchart-parent-1.3.0"

This reverts commit cde3b473.

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>com.xeiam.xchart</groupId>
 	<artifactId>xchart-parent</artifactId>
-	<version>1.3.0</version>
+	<version>1.3.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>XChart Parent</name>
 	<description>Basic Charts for Java Applications</description>
@@ -40,7 +41,6 @@
 		<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>xchart-parent-1.3.0</tag>
 	</scm>
 
 	<ciManagement>

xchart-demo/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>
 
 	<parent>
 		<groupId>com.xeiam.xchart</groupId>
 		<artifactId>xchart-parent</artifactId>
-		<version>1.3.0</version>
+		<version>1.3.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>xchart-demo</artifactId>
@@ -17,7 +18,7 @@
 		<dependency>
 			<groupId>com.xeiam.xchart</groupId>
 			<artifactId>xchart</artifactId>
-			<version>1.3.0</version>
+			<version>1.3.0-SNAPSHOT</version>
 		</dependency>
 	</dependencies>
 

xchart/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>
 	
 	<parent>
 		<groupId>com.xeiam.xchart</groupId>
 		<artifactId>xchart-parent</artifactId>
-		<version>1.3.0</version>
+		<version>1.3.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>xchart</artifactId>