upgraded dependency to MyBatis 3.0.4

Author: emacarron

pom.xml

@@ -85,7 +85,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.0.3</version>
+            <version>3.0.4</version>
             <scope>compile</scope>
         </dependency>