Added reader for map type.
Added writer for maps in cbuilder.
Joined index and t parameters in addVar externally.
Added top sort for declaring models in workable order.
Added support for detecting cyclical dependencies.
Cleaned up cbuilder output.
Fixed issues in parsing arrays and maps.
Fixed issue with type checking when loading unknowns.
Updated example.
Fixed parser to allow multiple tabs or spaces between variable names and types.
Updated version flag to say 0.3.