2 - move tests into ../../t during build ?
3 - update with new embedding strategy
4 - allow more signatures on call_sub()
5 - fill in method documentation for Parrot::Interpreter and Parrot::PMC
6 - store parent interpreter in Parrot::PMC objects
7 - allow invoke() on appropriate Parrot::PMC objects directly
8 - bless Parrot::PMC objects into appropriate subclasses if possible
9 - allow overloading magic on Parrot::PMC objects
10 - improve tests for failure conditions