Added information that python is needed for pip.
I'm experimenting now with kivy-ios using my MacOSX VM and I found out that python is missing for pip.
Had no python installed via brew or something else, so I decided to add it.
Think it could be useful for other new developers!
Added info to README.rst
Forgot something :D
Fixes formating at least!
You could use easy_install pip && pip install cython. There is no need to install brew python to be able to install cython :)
add easy_install information for cython. closes #29