title: getting error for org.msgpack.MessagePack when using fluent-logger-java
body: <p>I get "Could not initialize class org.msgpack.MessagePack"  when I try using the class I created that uses fluent-logger-java.<br>
  and referencing: fluent-logger-0.3.2.jar  &amp; msgpack-0.6.12.jar or msgpack-core-0.7.0-p7.jar</p>
  
  <p>Any suggestions?
  Thanks</p>