Change Log:
	version 0.7
		* Bug fix to handle prebase, postbase matras correctly
		* Added Ambili Map. Thanks to zyxware
	version 0.6
		* Loading the rules file multiple times fixed
	version 0.5
		* Python API fixes
		* pdf option detection from input file name extension
	version 0.4
		* bidirectional conversion
	version 0.3
		* minor fixes
	Version 0.2:
		* Renamed rules.map to karthika.map and corrected some mappings
	Version 0.1:
		* First release