Added assembly:assembly as release:perform goal.

pom.xml

@@ -1,6 +1,7 @@
 <!-- Maven build file for WorldEdit Copyright (c) 2011 sk89q <http://www.sk89q.com> 
   WorldEdit is available under the GNU General Public License v3 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.sk89q</groupId>
   <artifactId>worldedit</artifactId>
@@ -164,6 +165,9 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-release-plugin</artifactId>
         <version>2.1</version>
+        <configuration>
+          <goals>assembly:assembly</goals>
+        </configuration>
       </plugin>
     </plugins>
   </build>