Switch back master branch to 1.x. We will use the 2.x branch for development...

Switch back master branch to 1.x. We will use the 2.x branch for development until an alpha release is ready.

pom.xml

@@ -32,7 +32,7 @@
 
 	<groupId>org.graphstream</groupId>
 	<artifactId>gs-ui</artifactId>
-	<version>2.0-SNAPSHOT</version>
+	<version>1.3.1-SNAPSHOT</version>
 
 	<name>gs-ui</name>
 	<description>