How to start MuViMark:
* First of all you have to create a list of files that should be
  requested. Therefor use the jl_interface2 GUI which will also
  give you some feedback if the file is avaible and also some of
  its properties
* The next step would be to create the config file for the 
  UserPreferencesGenerator which will then create "classes" of 
  vitual users. Therefor use the upgui
* And finally execute MuViMark wtih ./muvimark
