Add javadoc creation and developer info to POM

In preparation for Maven Central.

Author: ralfstx

com.eclipsesource.json/pom.xml

@@ -40,6 +40,19 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>2.9.1</version>
+        <executions>
+          <execution>
+            <id>attach-javadocs</id>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <groupId>org.apache.felix</groupId>
         <artifactId>maven-bundle-plugin</artifactId>
@@ -74,6 +87,16 @@
     <tag>HEAD</tag>
   </scm>
 
+  <developers>
+    <developer>
+      <id>rsternberg</id>
+      <name>Ralf Sternberg</name>
+      <email>rsternberg@eclipsesource.com</email>
+      <organization>EclipseSource</organization>
+      <organizationUrl>http://eclipsesource.com/</organizationUrl>
+    </developer>
+  </developers>
+
   <dependencies>
     <dependency>
       <groupId>junit</groupId>