[maven-release-plugin] prepare for next development iteration

archetype/pom.xml

   <modelVersion>4.0.0</modelVersion>
   <groupId>com.googlecode.gwtquery</groupId>
   <artifactId>gquery-archetype</artifactId>
-  <version>1.5-beta1</version>
+  <version>1.5-SNAPSHOT</version>
   <packaging>maven-archetype</packaging>
   <name>GwtQuery Archetype</name>
 

gwtquery-core/pom.xml

     <parent>
         <groupId>com.googlecode.gwtquery</groupId>
         <artifactId>gwtquery-project</artifactId>
-        <version>1.5-beta1</version>
+        <version>1.5-SNAPSHOT</version>
     </parent>
 
 

pom.xml

     <groupId>com.googlecode.gwtquery</groupId>
     <artifactId>gwtquery-project</artifactId>
     <packaging>pom</packaging>
-    <version>1.5-beta1</version>
+    <version>1.5-SNAPSHOT</version>
     <name>Gwt Query Project</name>
     <url>http://gwtquery.com</url>
     <description>GwtQuery is a jQuery clone written in GWT.</description>