CLEANUP - This function can be used in order to clean
up the directory[TEXT_RESULTS] ,[TEXT_RESULTS_U] or [TEXT_RESULTS_Q]
from any other text outputs, from previous runnings of tmg.
CLEANUP(FILENAME,DIRECT) defines the actual path of the
directory we want to clean up and the directory we want to clean up.
Copyright 2011 Eugenia Maria Kontopoulou, Dimitrios Zeimpekis,
Efstratios Gallopoulos