Restored tuple.__str__, lost in the migration to the new regime
Merge branch 'modules-rewrite', remote-tracking branch 'origin'
clean testing files
Migrated the super class to the new regime
The three super() tests in python-reference are passing now.
Merge branch 'master' of https://github.com/brownplt/lambda-py

Conflicts:
	base/python-lib-bindings.rkt
	base/python-primitives.rkt
Fixed dict and list __init__ to support inheritance
This makes test_multiple_inheritance to succeed.
Moved passing tests in tests/scope to python-reference/scope
5 were new and 20 repeated
Migrated method classes to the new builtins regime
Added issubclass and 1/2 arg version of super()
Merge remote-tracking branch 'origin/master' into modules-rewrite