Add gitflow-maven-plugin.

Author: sutra

pom.xml

@@ -317,7 +317,20 @@
                 <artifactId>maven-release-plugin</artifactId>
                 <version>3.0.0-M1</version>
             </plugin>
+            <plugin>
+                <groupId>com.amashchenko.maven.plugin</groupId>
+                <artifactId>gitflow-maven-plugin</artifactId>
+            </plugin>
         </plugins>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>com.amashchenko.maven.plugin</groupId>
+                    <artifactId>gitflow-maven-plugin</artifactId>
+                    <version>1.15.0</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
     </build>
 
     <profiles>