Update pom.xml - for release

Updated profiles - release to release-sign-artifacts, added activation, added repository to distributionManagement, updated nexus-staging-maven-plugin version to 1.6.7

pom.xml

@@ -142,7 +142,13 @@
             </build>
         </profile>
         <profile>
-            <id>release</id>
+            <id>release-sign-artifacts</id>
+            <activation>
+                <property>
+                    <name>performRelease</name>
+                    <value>true</value>
+                </property>
+            </activation>
             <build>
                 <plugins>
                     <plugin>
@@ -352,7 +358,7 @@
                 <plugin>
                     <groupId>org.sonatype.plugins</groupId>
                     <artifactId>nexus-staging-maven-plugin</artifactId>
-                    <version>1.6.3</version>
+                    <version>1.6.7</version>
                 </plugin>
             </plugins>
         </pluginManagement>
@@ -441,5 +447,9 @@
             <id>ossrh</id>
             <url>https://oss.sonatype.org/content/repositories/snapshots</url>
         </snapshotRepository>
+        <repository>
+            <id>ossrh</id>
+            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+        </repository>        
     </distributionManagement>
 </project>