[maven-release-plugin] prepare for next development iteration
diff --git a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
index e163eee..db62a85 100644
--- a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks.examples</groupId>
     <artifactId>btree-example</artifactId>
-    <version>0.3.0</version>
+    <version>0.3.1-SNAPSHOT</version>
   </parent>
 
   <properties>
diff --git a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml
index 051d1b7..c2c7318 100644
--- a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hyracks.examples</groupId>
     <artifactId>btree-example</artifactId>
-    <version>0.3.0</version>
+    <version>0.3.1-SNAPSHOT</version>
   </parent>
 
   <properties>
diff --git a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml
index 5bbb612..8cff14a 100644
--- a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.hyracks.examples</groupId>
     <artifactId>btree-example</artifactId>
-    <version>0.3.0</version>
+    <version>0.3.1-SNAPSHOT</version>
   </parent>
 
   <properties>
diff --git a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/pom.xml b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/pom.xml
index f8885f2..4711435 100644
--- a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks-examples</artifactId>
-    <version>0.3.0</version>
+    <version>0.3.1-SNAPSHOT</version>
   </parent>
 
   <properties>