#1 Use SLF4J

[michielgk]

The Simple Logging Facade for Java or (SLF4J) serves as a simple facade or abstraction for various logging frameworks, e.g. java.util.logging, log4j and logback, allowing the end user to plug in the desired logging framework at deployment time. (http://www.slf4j.org/)

Currently, Hamaxagoga is using log4j. Change it to use SLF4J such that a user can apply his/her framework of choice.