Revert "Use maven-release-plugin instead of versions-maven-plugin"

This reverts commit dab17f2

Author: nakamura-to

.gitignore

@@ -9,7 +9,3 @@ target
 .settings
 .factorypath
 .apt_generated
-pom.xml.next
-pom.xml.tag
-pom.xml.releaseBackup
-release.properties

pom.xml

@@ -52,7 +52,7 @@
         <javadoc-plugin.version>3.2.0</javadoc-plugin.version>
         <nexus-staging-plugin.version>1.6.8</nexus-staging-plugin.version>
         <formatter-maven-plugin.version>2.13.0</formatter-maven-plugin.version>
-        <release-plugin.version>3.0.0-M1</release-plugin.version>
+        <versions-maven-plugin.version>2.2</versions-maven-plugin.version>
         <gpg-plugin.version>1.6</gpg-plugin.version>
         <rootDir>${project.basedir}</rootDir>
     </properties>
@@ -150,12 +150,9 @@
                 </configuration>
             </plugin>
             <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-release-plugin</artifactId>
-                <version>${release-plugin.version}</version>
-                <configuration>
-                    <autoVersionSubmodules>true</autoVersionSubmodules>
-                </configuration>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>versions-maven-plugin</artifactId>
+                <version>${versions-maven-plugin.version}</version>
             </plugin>
             <plugin>
                 <groupId>net.revelc.code.formatter</groupId>