Simplify Complex.__nonzero__
Add wrap/unwrap to vector
Don't wrap results of Number in python land
Implement flatargs for varargs and keywords
Support varargs (when called from Python)
Work on varargs support for calls in flypy code
Support Python varargs calling convention in flypy code
Smooth out some rough edges with tuples
Work on argument unpacking
Support for unpacking for calls f(x, y, *args)

	TODO: Make this work with missing defaults
	TODO: For dynamic-sized tuples, generate runtime check
	TODO: Support unpacking when function has varargs
Forgot signature module
Work on term evaluator with polymorphic arity
Support debug print that prints IR and types
Replace uses of void with None
Make loops work in term tree evaluator
Disable method copy for now
Parse function/method signatures lazily
Build unification-ready dispatcher only once
Cache results of unification
Don't export types in toplevel namespace