1.0.x  : - version of compiler with old linker interface i.e.
	   for subrange left < right , independent of then 
	   BIT_ORDERING in the configuration file.
	 - Generates only expansion and synonyms files.

1.1.x  : - version of compiler with new linker interface i.e.
	   subrange dependent on the BIT_ORDERING in the configuration
	   file.

1.2.x  : - Generates library chips file as output depending on output
	   directive.
	 - Generates error message if root drawing name is not specified.
