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

pom.xml

@@ -32,7 +32,7 @@ THE SOFTWARE.
   </parent>
 
   <artifactId>ec2</artifactId>
-  <version>1.25</version>
+  <version>1.26-SNAPSHOT</version>
   <packaging>hpi</packaging>
   <name>Amazon EC2 plugin</name>
   <url>http://wiki.jenkins-ci.org/display/JENKINS/Amazon+EC2+Plugin</url>
@@ -48,7 +48,7 @@ THE SOFTWARE.
     <connection>scm:git:git://github.com/jenkinsci/ec2-plugin.git</connection>
     <developerConnection>scm:git:[email protected]:jenkinsci/ec2-plugin.git</developerConnection>
     <url>https://github.com/jenkinsci/ec2-plugin</url>
-    <tag>ec2-1.25</tag>
+    <tag>HEAD</tag>
   </scm>
 
   <dependencies>