Upgrading to MINA 2.0.4 (FTPSERVER-421)

git-svn-id: https://svn.apache.org/repos/asf/mina/ftpserver/trunk@1137254 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 54758fc..471c389 100644
--- a/pom.xml
+++ b/pom.xml
@@ -153,7 +153,7 @@
       <dependency>
         <groupId>org.apache.mina</groupId>
         <artifactId>mina-core</artifactId>
-        <version>2.0.2</version>
+        <version>2.0.4</version>
       </dependency>
 
     <dependency>