updated to MINA 2.2.4

Author: chrjohn

quickfixj-core/pom.xml

@@ -64,7 +64,7 @@
         <dependency>
             <groupId>org.apache.mina</groupId>
             <artifactId>mina-core</artifactId>
-            <version>2.2.2</version>
+            <version>2.2.4</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>