Reset "-SNAPSHOT" suffix in "<version>" tag.

Next version is still "4.0", with "0" as minor number, because last release was "beta".
diff --git a/commons-math-core/pom.xml b/commons-math-core/pom.xml
index 582a2b5..7ed6294 100644
--- a/commons-math-core/pom.xml
+++ b/commons-math-core/pom.xml
@@ -15,15 +15,13 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4-core</artifactId>
diff --git a/commons-math-examples/examples-kmeans/image/pom.xml b/commons-math-examples/examples-kmeans/image/pom.xml
index 4a436e3..cc9d086 100644
--- a/commons-math-examples/examples-kmeans/image/pom.xml
+++ b/commons-math-examples/examples-kmeans/image/pom.xml
@@ -21,11 +21,11 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>examples-kmeans</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>examples-kmeans-image</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <!-- This name is used in the shaded jar to provide the application title for the version information. -->
   <name>K-Means: Image Clustering</name>
 
diff --git a/commons-math-examples/examples-kmeans/pom.xml b/commons-math-examples/examples-kmeans/pom.xml
index 339cc0d..b40f5b9 100644
--- a/commons-math-examples/examples-kmeans/pom.xml
+++ b/commons-math-examples/examples-kmeans/pom.xml
@@ -21,11 +21,11 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-examples</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>examples-kmeans</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>K-Means</name>
 
diff --git a/commons-math-examples/examples-sofm/chinese-rings/pom.xml b/commons-math-examples/examples-sofm/chinese-rings/pom.xml
index 72ed8c1..d28c90a 100644
--- a/commons-math-examples/examples-sofm/chinese-rings/pom.xml
+++ b/commons-math-examples/examples-sofm/chinese-rings/pom.xml
@@ -21,11 +21,11 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>examples-sofm</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>examples-sofm-chinese-rings</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <!-- This name is used in the shaded jar to provide the application title for the version information. -->
   <name>SOFM: Chinese Rings</name>
 
diff --git a/commons-math-examples/examples-sofm/pom.xml b/commons-math-examples/examples-sofm/pom.xml
index 88a98a6..928b698 100644
--- a/commons-math-examples/examples-sofm/pom.xml
+++ b/commons-math-examples/examples-sofm/pom.xml
@@ -21,11 +21,11 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-examples</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>examples-sofm</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>SOFM</name>
 
diff --git a/commons-math-examples/examples-sofm/tsp/pom.xml b/commons-math-examples/examples-sofm/tsp/pom.xml
index 99e3c67..501abc2 100644
--- a/commons-math-examples/examples-sofm/tsp/pom.xml
+++ b/commons-math-examples/examples-sofm/tsp/pom.xml
@@ -21,11 +21,11 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>examples-sofm</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>examples-sofm-tsp</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <!-- This name is used in the shaded jar to provide the application title for the version information. -->
   <name>SOFM: Traveling Salesman Problem</name>
 
diff --git a/commons-math-examples/pom.xml b/commons-math-examples/pom.xml
index 07bcaf0..dd0df72 100644
--- a/commons-math-examples/pom.xml
+++ b/commons-math-examples/pom.xml
@@ -21,11 +21,11 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math-examples</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>Example applications</name>
 
diff --git a/commons-math-legacy-core/pom.xml b/commons-math-legacy-core/pom.xml
index fc4d470..274ac84 100644
--- a/commons-math-legacy-core/pom.xml
+++ b/commons-math-legacy-core/pom.xml
@@ -15,15 +15,13 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4-legacy-core</artifactId>
diff --git a/commons-math-legacy-exception/pom.xml b/commons-math-legacy-exception/pom.xml
index ec6a772..f3a8831 100644
--- a/commons-math-legacy-exception/pom.xml
+++ b/commons-math-legacy-exception/pom.xml
@@ -15,15 +15,13 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4-legacy-exception</artifactId>
diff --git a/commons-math-legacy/pom.xml b/commons-math-legacy/pom.xml
index 2fc5c89..a340489 100644
--- a/commons-math-legacy/pom.xml
+++ b/commons-math-legacy/pom.xml
@@ -15,15 +15,13 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4-legacy</artifactId>
diff --git a/commons-math-neuralnet/pom.xml b/commons-math-neuralnet/pom.xml
index 8ae0c76..65c704c 100644
--- a/commons-math-neuralnet/pom.xml
+++ b/commons-math-neuralnet/pom.xml
@@ -15,15 +15,13 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4-neuralnet</artifactId>
diff --git a/commons-math-transform/pom.xml b/commons-math-transform/pom.xml
index f1f6932..05e41ed 100644
--- a/commons-math-transform/pom.xml
+++ b/commons-math-transform/pom.xml
@@ -15,15 +15,13 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 -->
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4-transform</artifactId>
diff --git a/dist-archive/pom.xml b/dist-archive/pom.xml
index c43d3b7..ce20264 100644
--- a/dist-archive/pom.xml
+++ b/dist-archive/pom.xml
@@ -17,15 +17,13 @@
 specific language governing permissions and limitations
 under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math4</artifactId>
diff --git a/docs-archive/pom.xml b/docs-archive/pom.xml
index 3e6c1f8..2773605 100644
--- a/docs-archive/pom.xml
+++ b/docs-archive/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-math-parent</artifactId>
-    <version>4.0-beta1</version>
+    <version>4.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>commons-math-docs</artifactId>
diff --git a/pom.xml b/pom.xml
index 3720ff2..931ea28 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
   </parent>
 
   <artifactId>commons-math-parent</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>Apache Commons Math</name>
   <description>
@@ -540,9 +540,8 @@
                 </goals>
                 <configuration>
                   <target name="empty-checkout" unless="${perform.site.checkout}">
-                    <mkdir dir="${commons.scmPubCheckoutDirectory}"/>
-                    <echo file="${commons.scmPubCheckoutDirectory}${file.separator}README"
-                          message="The '${commons.scmPubCheckoutDirectory}' directory is empty in child modules."/>
+                    <mkdir dir="${commons.scmPubCheckoutDirectory}" />
+                    <echo file="${commons.scmPubCheckoutDirectory}${file.separator}README" message="The '${commons.scmPubCheckoutDirectory}' directory is empty in child modules." />
                   </target>
                 </configuration>
               </execution>
@@ -560,7 +559,7 @@
                       <arg line="checkout --depth immediates ${commons.scmPubUrl} ${commons.scmPubCheckoutDirectory}" />
                     </exec>
                     <!-- Create the directory in the event that no svn exectuable is on the path -->
-                    <mkdir dir="${commons.scmPubCheckoutDirectory}"/>
+                    <mkdir dir="${commons.scmPubCheckoutDirectory}" />
 
                     <echo file="${commons.scmPubCheckoutDirectory}.README">The '${commons.scmPubCheckoutDirectory}' directory is controlled by "subversion".
 Running "svn up" will download *all* the files of the live web site at
@@ -597,8 +596,8 @@
                 </goals>
                 <configuration>
                   <target name="remove-checkout">
-                    <delete dir="${commons.scmPubCheckoutDirectory}" quiet="true"/>
-                    <delete file="${commons.scmPubCheckoutDirectory}.README" quiet="true"/>
+                    <delete dir="${commons.scmPubCheckoutDirectory}" quiet="true" />
+                    <delete file="${commons.scmPubCheckoutDirectory}.README" quiet="true" />
                   </target>
                 </configuration>
               </execution>
@@ -761,7 +760,7 @@
       <email>billbarker at apache dot org</email>
     </developer>
     <developer>
-      <name>S&#233;bastien Brisard</name>
+      <name>Sébastien Brisard</name>
       <id>celestin</id>
       <email>celestin at apache dot org</email>
     </developer>
@@ -858,7 +857,7 @@
       <name>Peter Andrews</name>
     </contributor>
     <contributor>
-      <name>R&#233;mi Arntzen</name>
+      <name>Rémi Arntzen</name>
     </contributor>
     <contributor>
       <name>Matt Adereth</name>
@@ -927,7 +926,7 @@
       <name>Hank Grabowski</name>
     </contributor>
     <contributor>
-      <name>Bernhard Gr&#252;newaldt</name>
+      <name>Bernhard Grünewaldt</name>
     </contributor>
     <contributor>
       <name>Elliotte Rusty Harold</name>
@@ -1005,7 +1004,7 @@
       <name>Andreas Rieger</name>
     </contributor>
     <contributor>
-      <name>S&#233;bastien Riou</name>
+      <name>Sébastien Riou</name>
     </contributor>
     <contributor>
       <name>Karl Richter</name>
@@ -1056,7 +1055,7 @@
       <name>Andrew Waterman</name>
     </contributor>
     <contributor>
-      <name>J&#246;rg Weimar</name>
+      <name>Jörg Weimar</name>
     </contributor>
     <contributor>
       <name>Christian Winter</name>
diff --git a/src/userguide/pom.xml b/src/userguide/pom.xml
index 5ed0436..8a78735 100644
--- a/src/userguide/pom.xml
+++ b/src/userguide/pom.xml
@@ -22,7 +22,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.apache.commons</groupId>
   <artifactId>commons-math4-examples</artifactId>
-  <version>4.0-beta1</version>
+  <version>4.0-SNAPSHOT</version>
   <name>Commons Math User Guide</name>
   <inceptionYear>2003</inceptionYear>
   <description>Examples</description>
@@ -84,12 +84,12 @@
           <groupId>org.apache.commons</groupId>
           <artifactId>commons-math4</artifactId>
           <classifier>tools</classifier>
-          <version>4.0-beta1</version>
+          <version>4.0-SNAPSHOT</version>
       </dependency>
       <dependency>
           <groupId>org.apache.commons</groupId>
           <artifactId>commons-math4</artifactId>
-          <version>4.0-beta1</version>
+          <version>4.0-SNAPSHOT</version>
       </dependency>
       <dependency>
           <groupId>com.xeiam.xchart</groupId>