* The command line arguments have been updated with the options
		- -statistics for printing information regarding the input polygons
		   and the resulting arrangement.
		- -debug and -time options for printing debug and time information
		   respectively.
	  
	* added the possibility to choose the method for the computation of
	the interior/exterior blocks as a command line option (-m method).

Sun Jan 19 18:15:37 2014  Stella Giannakopoulou

	* Initial code that was run for AAAI 2014.