- Fixed error in the CIF finite state machine. The LayerName character set was
  expanded to include "_" chars.

- More work done on the process of cleaning the commands. Most of them
  are already been cleaned  (Polygon, Box, Wire, RoundFlash and Layer are
  already been cleaned). The UserExpansion and comment commands are not
  going to be cleaned. So, that gives as left to clean the Call, Definition
  control and End command.

  The process of cleaning is done deleting inneccesary characters, leaving
  a friendly format. From something like this:

	P-100,10000thisisvalid-10000cuac,cuac,cuac,imaduck-20000yolo;

  To this:

	P -100 10000 -10000 -20000 ;

- Added extra member functions to the File class files to return the
  raw (but cleaned) commands.