[maven-release-plugin] prepare release druid-0.3.31
diff --git a/client/pom.xml b/client/pom.xml
index 5bd5c6e..4c2f762 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/common/pom.xml b/common/pom.xml
index ed008ee..5f905df 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/druid-services/pom.xml b/druid-services/pom.xml
index bad31fc..e4fca28 100644
--- a/druid-services/pom.xml
+++ b/druid-services/pom.xml
@@ -24,11 +24,11 @@
     <artifactId>druid-services</artifactId>
     <name>druid-services</name>
     <description>druid-services</description>
-    <version>0.3.31-SNAPSHOT</version>
+    <version>0.3.31</version>
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/examples/pom.xml b/examples/pom.xml
index 44f06e3..5762e91 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <modules>
diff --git a/examples/rand/pom.xml b/examples/rand/pom.xml
index 94be2b1..aa4dbba 100644
--- a/examples/rand/pom.xml
+++ b/examples/rand/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid-examples</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/examples/twitter/pom.xml b/examples/twitter/pom.xml
index 9c4f6b8..72ec6ec 100644
--- a/examples/twitter/pom.xml
+++ b/examples/twitter/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid-examples</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/index-common/pom.xml b/index-common/pom.xml
index 0e36000..2e46e48 100644
--- a/index-common/pom.xml
+++ b/index-common/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/indexer/pom.xml b/indexer/pom.xml
index 5da9b2c..a20f837 100644
--- a/indexer/pom.xml
+++ b/indexer/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/merger/pom.xml b/merger/pom.xml
index 8397e82..a70481c 100644
--- a/merger/pom.xml
+++ b/merger/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>
diff --git a/pom.xml b/pom.xml
index 7a7c304..6cb4524 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
     <groupId>com.metamx</groupId>
     <artifactId>druid</artifactId>
     <packaging>pom</packaging>
-    <version>0.3.31-SNAPSHOT</version>
+    <version>0.3.31</version>
     <name>druid</name>
     <description>druid</description>
     <scm>
diff --git a/realtime/pom.xml b/realtime/pom.xml
index dc8edb3..bc267f3 100644
--- a/realtime/pom.xml
+++ b/realtime/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <properties>
diff --git a/server/pom.xml b/server/pom.xml
index 20ed26d..52c16f0 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.metamx</groupId>
         <artifactId>druid</artifactId>
-        <version>0.3.31-SNAPSHOT</version>
+        <version>0.3.31</version>
     </parent>
 
     <dependencies>