fix sending emails from integration tests

SVN: 14724

integration-tests/templates/datastore_server_yeastx/etc/log.xml

+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
+
+<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>
+
+  <appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
+     <layout class="org.apache.log4j.PatternLayout">
+       <param name="ConversionPattern" value="%d %-5p [%t] %c - %m%n"/>
+     </layout>
+  </appender>
+
+  <appender name="NULL" class="org.apache.log4j.varia.NullAppender" />
+
+  <root>
+     <priority value ="info" />
+     <appender-ref ref="STDOUT" />
+  </root>
+
+</log4j:configuration>