Make bool a proper subclass of int

Required a small amount of object changes, and then a large
number of replacements where we directly compared the class
to int_cls.  We now check that it's a subclass, since you
are allowed to use True/False anywhere that you could use
an int.  ex "xrange(0, n, step=True)"
[HAX] not addressing these for now
Fix some bugs
Shore up sys.flags
dict.update and add _sysconfigdata
In CMake, copy the stdlib over if they get changed

My first stab at writing CMake rules
Copy the lib_pyston directory into cmake
Import stringlib/
[wip] import pyobject_format