Deploy the exonum-java-app module [ECR-3987] (#1297)

Deploy the exonum-java-app module, upon which
the testkit depends.

(cherry picked from commit 90e57f2)

Author: dmitry-timofeev

exonum-java-binding/CHANGELOG.md

@@ -15,6 +15,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## 0.9.0-rc2 - 2019-12-17
+
+### Fixed
+- Published on Maven Central a missing dependency of a Testkit module 
+(exonum-java-app).
+
 ## [0.9.0-rc1] - 2019-12-12
 
 ### Overview

exonum-java-binding/app/pom.xml

@@ -119,13 +119,14 @@
         </configuration>
       </plugin>
 
-      <!-- Skip the deployment of internal module as it is inherited from parent pom -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-deploy-plugin</artifactId>
-        <configuration>
-          <skip>true</skip>
-        </configuration>
+        <artifactId>maven-javadoc-plugin</artifactId>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
       </plugin>
     </plugins>
   </build>