glew: install libraries to $out/lib instead of $out/lib64
pygame: update to 1.9.1

Enable PNG and JPEG support
Use pygame-v4l patch from AUR
add Ren'Py 6.15.5

Ren'Py is a visual novel engine that helps you use words,
images, and sounds to tell stories with the computer.
This is just the minimal launcher.
Merge pull request #604 from iyzsong/renpy

Add Ren'Py visual novel engine