New log class called MyLogger, other class changed

So I realized that previous solution was really complicated and made a
new one. Hope that will work! :)
I deleted log4j.xml file as well as Log4JUtils.java and added new class
MyLogger. MyLogger is a singleton that is making a log file and pattern
just ones. If you want to make a Logger you just need to call the
MyLogger instance and to call createLogger(Example.class) method. After
that you can get your Logger calling getLogger() method and than use
info() and error() methods.
In other classes (Application, HelpCommand, QuitCommand) you can see how
to use MyLogger instance, it is really simple.