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

Author: dkocher

pom.xml

@@ -8,7 +8,7 @@
     </parent>
     <groupId>ch.iterate.openstack</groupId>
     <artifactId>swift</artifactId>
-    <version>2.5.14</version>
+    <version>2.5.15-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>OpenStack Swift Client</name>
     <description>Java language bindings for OpenStack Swift</description>