Pyth 3.0.0: zip to C, space separated eval to r.

1. New numbering system. Every commit increments 3rd number. Changes
larger than a couple functions in macro.py, e.g. changes to pyth.py
increment second number. Really big stuff is first number.

2. C<list> =  zip(*<list>)

3. r<str>7 = old y<str>