title: Rolling file not generated using logback in tomcat log directory
body: <p>I am first time using the logback logger, 
  I have written the configuration file for generating rolling file in tomcat logs,
  It generates log file named processlog.log but it did not generate the rolling file
  like processlog.2014-05-29.log</p>
  
  <p>Can anyone figure out,Whats wrong in configuration file ?</p>
  
  <p>Here is my configuration file.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8" ?&gt;
  &lt;configuration&gt;
  
      &lt;appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender"&gt;
          &lt;encoder&gt;
              &lt;pattern&gt;%date{HH:mm:ss.SSS} %-5p [%t] %c{1} - %m%n&lt;/pattern&gt;
          &lt;/encoder&gt;
      &lt;/appender&gt;
  
      &lt;appender name="ROLLING_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"&gt;
          &lt;file&gt;${catalina.home}/logs/processlog.log&lt;/file&gt;
          &lt;rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"&gt;
              &lt;FileNamePattern&gt;processlog.%d{yyyy-MM-dd}.log&lt;/FileNamePattern&gt;
          &lt;/rollingPolicy&gt;
          &lt;encoder&gt;
              &lt;pattern&gt;%date{HH:mm:ss.SSS} %-5p [%t] %c{1} - %m%n&lt;/pattern&gt;
          &lt;/encoder&gt;
          &lt;append&gt;true&lt;/append&gt;
      &lt;/appender&gt;
      &lt;logger name="com.myproject" level="DEBUG"/&gt;
      &lt;root&gt;
          &lt;priority value="INFO"/&gt;
          &lt;appender-ref ref="CONSOLE"/&gt;
          &lt;appender-ref ref="ROLLING_FILE"/&gt;
      &lt;/root&gt;
  
  &lt;/configuration&gt;
  </code></pre>