Upgrade Maven Release plugin for workaround of [PARENT-34]

pom.xml

@@ -220,11 +220,19 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-release-plugin</artifactId>
-          <!--
-          Do not upgrade to 2.4 because of http://jira.codehaus.org/browse/MRELEASE-818.
-          Fixed in 2.4.1.
-          -->
-          <version>2.3.2</version>
+          <version>2.4.2</version>
+          <dependencies>
+            <dependency>
+              <groupId>org.apache.maven.scm</groupId>
+              <artifactId>maven-scm-api</artifactId>
+              <version>1.8.1</version>
+            </dependency>
+            <dependency>
+              <groupId>org.apache.maven.scm</groupId>
+              <artifactId>maven-scm-provider-gitexe</artifactId>
+              <version>1.8.1</version>
+            </dependency>
+          </dependencies>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>