Quite a few new features:

	1) you can setup some initial parameters via command lines
	2) now files with tags should not be a problem (e.g:
	  owesome_simulation_tag1_tag2_300.snap)
	3) you can start wtih -z depth, where depth is a float (z val in Mm) for which an
	app will find the closest slice (eg. -z 0.0)
  	4) B&W pallette is now inverted to make IDL users happy or less
	confused
	5) For more, start an app from command line with argument '-h'