Revert "Release 2.5: set versions to 2.5 and <scm><tag>=2.5"

This reverts commit bfbd57270df474b7e97f847139fb9fe179d98418.
diff --git a/pom.xml b/pom.xml
index 130ac0b..874b84a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
     </parent>
 
     <artifactId>velocity-engine-parent</artifactId>
-    <version>2.5</version>
+    <version>2.5-SNAPSHOT</version>
 
     <name>Apache Velocity</name>
     <url>http://velocity.apache.org/engine/devel/</url>
@@ -133,7 +133,7 @@
         <connection>scm:git:https://gitbox.apache.org/repos/asf/velocity-engine.git</connection>
         <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/velocity-engine.git</developerConnection>
         <url>https://gitbox.apache.org/repos/asf?p=velocity-engine.git</url>
-        <tag>2.5</tag>
+        <tag>2.4</tag>
     </scm>
 
     <issueManagement>
diff --git a/pom.xml.versionsBackup b/pom.xml.versionsBackup
deleted file mode 100644
index a2dfad3..0000000
--- a/pom.xml.versionsBackup
+++ /dev/null
@@ -1,283 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-
-    Licensed to the Apache Software Foundation (ASF) under one
-    or more contributor license agreements.  See the NOTICE file
-    distributed with this work for additional information
-    regarding copyright ownership.  The ASF licenses this file
-    to you under the Apache License, Version 2.0 (the
-    "License"); you may not use this file except in compliance
-    with the License.  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing,
-    software distributed under the License is distributed on an
-    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-    KIND, either express or implied.  See the License for the
-    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">
-
-    <modelVersion>4.0.0</modelVersion>
-
-    <parent>
-        <groupId>org.apache.velocity</groupId>
-        <artifactId>velocity-master</artifactId>
-        <version>8</version>
-        <relativePath />
-    </parent>
-
-    <artifactId>velocity-engine-parent</artifactId>
-    <version>2.5</version>
-
-    <name>Apache Velocity</name>
-    <url>http://velocity.apache.org/engine/devel/</url>
-    <description>Apache Velocity is a general purpose template engine.</description>
-    <inceptionYear>2000</inceptionYear>
-    <packaging>pom</packaging>
-
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <junit.version>4.13.2</junit.version>
-        <slf4j.version>2.0.17</slf4j.version>
-    </properties>
-
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.slf4j</groupId>
-                <artifactId>slf4j-api</artifactId>
-                <version>${slf4j.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>junit</groupId>
-                <artifactId>junit</artifactId>
-                <version>${junit.version}</version>
-                <scope>test</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.slf4j</groupId>
-                <artifactId>slf4j-simple</artifactId>
-                <version>${slf4j.version}</version>
-                <scope>test</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
-    <build>
-        <defaultGoal>install</defaultGoal>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <artifactId>maven-jar-plugin</artifactId>
-                    <configuration>
-                        <archive>
-                            <manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
-                        </archive>
-                    </configuration>
-                </plugin>
-                <plugin>
-                    <groupId>org.apache.felix</groupId>
-                    <artifactId>maven-bundle-plugin</artifactId>
-                    <version>5.1.9</version>
-                    <executions>
-                        <execution>
-                            <id>bundle-manifest</id>
-                            <phase>process-classes</phase>
-                            <goals>
-                                <goal>manifest</goal>
-                            </goals>
-                        </execution>
-                    </executions>
-                </plugin>
-                <plugin>
-                    <groupId>org.codehaus.mojo</groupId>
-                    <artifactId>javacc-maven-plugin</artifactId>
-                    <version>3.1.0</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <configuration>
-                    <!-- full checking is left disabled
-                         <doclint>html,missing,reference,syntax</doclint>
-                    -->
-                    <doclint>none</doclint>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>aggregate</id>
-                        <goals>
-                            <goal>aggregate</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-    <distributionManagement>
-        <site>
-            <id>velocity.apache.org</id>
-            <url>scpexe://people.apache.org/www/velocity.apache.org/engine/devel/</url>
-        </site>
-    </distributionManagement>
-
-    <scm>
-        <connection>scm:git:https://gitbox.apache.org/repos/asf/velocity-engine.git</connection>
-        <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/velocity-engine.git</developerConnection>
-        <url>https://gitbox.apache.org/repos/asf?p=velocity-engine.git</url>
-        <tag>2.4</tag>
-    </scm>
-
-    <issueManagement>
-        <system>JIRA</system>
-        <url>https://issues.apache.org/jira/browse/VELOCITY</url>
-    </issueManagement>
-    <modules>
-        <module>velocity-engine-core</module>
-        <module>velocity-engine-examples</module>
-        <module>velocity-engine-scripting</module>
-        <module>velocity-custom-parser-example</module>
-        <module>spring5-velocity-support</module>
-        <module>spring-velocity-support</module>
-    </modules>
-
-    <!-- This project is an effort by many people. If you feel that your name
-         should be in here and has been omitted in error, please open an issue
-         with the Apache Velocity Issue tracker. -->
-    <contributors>
-        <contributor>
-            <name>Adrian Tarau</name>
-        </contributor>
-        <contributor>
-            <name>Aki Nieminen</name>
-        </contributor>
-        <contributor>
-            <name>Alexey Pachenko</name>
-        </contributor>
-        <contributor>
-            <name>Anil K. Vijendran</name>
-        </contributor>
-        <contributor>
-            <name>Attila Szegedi</name>
-        </contributor>
-        <contributor>
-            <name>Bob McWhirter</name>
-        </contributor>
-        <contributor>
-            <name>Byron Foster</name>
-        </contributor>
-        <contributor>
-            <name>Candid Dauth</name>
-        </contributor>
-        <contributor>
-            <name>Christoph Reck</name>
-        </contributor>
-        <contributor>
-            <name>Darren Cruse</name>
-        </contributor>
-        <contributor>
-            <name>Dave Bryson</name>
-        </contributor>
-        <contributor>
-            <name>David Kinnvall</name>
-        </contributor>
-        <contributor>
-            <name>Dawid Weiss</name>
-        </contributor>
-        <contributor>
-            <name>Dishara Wijewardana</name>
-        </contributor>
-        <contributor>
-            <name>Eelco Hillenius</name>
-        </contributor>
-        <contributor>
-            <name>Fedor Karpelevitch</name>
-        </contributor>
-        <contributor>
-            <name>Felipe Maschio</name>
-        </contributor>
-        <contributor>
-            <name>Gal Shachor</name>
-        </contributor>
-        <contributor>
-            <name>Hervé Boutemy</name>
-        </contributor>
-        <contributor>
-            <name>Jarkko Viinamäki</name>
-        </contributor>
-        <contributor>
-            <name>Jeff Bowden</name>
-        </contributor>
-        <contributor>
-            <name>Jorgen Rydenius</name>
-        </contributor>
-        <contributor>
-            <name>Jose Alberto Fernandez</name>
-        </contributor>
-        <contributor>
-            <name>Kasper Nielsen</name>
-        </contributor>
-        <contributor>
-            <name>Kent Johnson</name>
-        </contributor>
-        <contributor>
-            <name>Kyle F. Downey</name>
-        </contributor>
-        <contributor>
-            <name>Leon Messerschmidt</name>
-        </contributor>
-        <contributor>
-            <name>Llewellyn Falco</name>
-        </contributor>
-        <contributor>
-            <name>Matt Raible</name>
-        </contributor>
-        <contributor>
-            <name>Matt Ryall</name>
-        </contributor>
-        <contributor>
-            <name>Matthijs Lambooy</name>
-        </contributor>
-        <contributor>
-            <name>Oswaldo Hernandez</name>
-        </contributor>
-        <contributor>
-            <name>Paulo Gaspar</name>
-        </contributor>
-        <contributor>
-            <name>Peter Romianowski</name>
-        </contributor>
-        <contributor>
-            <name>Robert Burrell Donkin</name>
-        </contributor>
-        <contributor>
-            <name>Robert Fuller</name>
-        </contributor>
-        <contributor>
-            <name>Sam Ruby</name>
-        </contributor>
-        <contributor>
-            <name>Sean Legassick</name>
-        </contributor>
-        <contributor>
-            <name>Serge Knystautas</name>
-        </contributor>
-        <contributor>
-            <name>Stephane Bailliez</name>
-        </contributor>
-        <contributor>
-            <name>Stephen Habermann</name>
-        </contributor>
-        <contributor>
-            <name>Sylwester Lachiewicz</name>
-        </contributor>
-    </contributors>
-</project>
diff --git a/spring-velocity-support/pom.xml b/spring-velocity-support/pom.xml
index 7633846..1afb0a7 100644
--- a/spring-velocity-support/pom.xml
+++ b/spring-velocity-support/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.velocity</groupId>
         <artifactId>velocity-engine-parent</artifactId>
-        <version>2.5</version>
+        <version>2.5-SNAPSHOT</version>
     </parent>
     <artifactId>spring-velocity-support</artifactId>
     <name>Spring framework Velocity support</name>
diff --git a/spring5-velocity-support/pom.xml b/spring5-velocity-support/pom.xml
index 3b18458..f6c91af 100644
--- a/spring5-velocity-support/pom.xml
+++ b/spring5-velocity-support/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.velocity</groupId>
         <artifactId>velocity-engine-parent</artifactId>
-        <version>2.5</version>
+        <version>2.5-SNAPSHOT</version>
     </parent>
     <artifactId>spring5-velocity-support</artifactId>
     <name>Spring 5 framework Velocity support</name>
diff --git a/velocity-custom-parser-example/pom.xml b/velocity-custom-parser-example/pom.xml
index 302aeef..7c609b2 100644
--- a/velocity-custom-parser-example/pom.xml
+++ b/velocity-custom-parser-example/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.velocity</groupId>
         <artifactId>velocity-engine-parent</artifactId>
-        <version>2.5</version>
+        <version>2.5-SNAPSHOT</version>
     </parent>
 
     <artifactId>velocity-custom-parser-example</artifactId>
diff --git a/velocity-engine-core/pom.xml b/velocity-engine-core/pom.xml
index 5f4045f..0e136ee 100644
--- a/velocity-engine-core/pom.xml
+++ b/velocity-engine-core/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.velocity</groupId>
         <artifactId>velocity-engine-parent</artifactId>
-        <version>2.5</version>
+        <version>2.5-SNAPSHOT</version>
     </parent>
 
     <artifactId>velocity-engine-core</artifactId>
diff --git a/velocity-engine-examples/pom.xml b/velocity-engine-examples/pom.xml
index 06be5b3..97c694b 100644
--- a/velocity-engine-examples/pom.xml
+++ b/velocity-engine-examples/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.velocity</groupId>
         <artifactId>velocity-engine-parent</artifactId>
-        <version>2.5</version>
+        <version>2.5-SNAPSHOT</version>
     </parent>
 
     <artifactId>velocity-engine-examples</artifactId>
diff --git a/velocity-engine-scripting/pom.xml b/velocity-engine-scripting/pom.xml
index 6a51376..144316f 100644
--- a/velocity-engine-scripting/pom.xml
+++ b/velocity-engine-scripting/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.velocity</groupId>
         <artifactId>velocity-engine-parent</artifactId>
-        <version>2.5</version>
+        <version>2.5-SNAPSHOT</version>
     </parent>
     <artifactId>velocity-engine-scripting</artifactId>
     <name>Apache Velocity - JSR 223 Scripting</name>