Roll back to prepare respin of version 15.


git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1627330 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index a452ea0..d43eda1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
   <!-- for more information, see the documentation of this POM: http://maven.apache.org/pom/asf/ -->
   <groupId>org.apache</groupId>
   <artifactId>apache</artifactId>
-  <version>16-SNAPSHOT</version>
+  <version>15-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>The Apache Software Foundation</name>