[plt-planet-announce] Updated PLaneT package: jaymccarthy/gl-world.plt for 4.x

This announces the availability of an updated package from PLaneT:

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Name:            gl-world.plt
Package version: 2.0
Owner:           jaymccarthy


Package Description
Like World, but with OpenGL rendering.
Release Notes
Fixing contracts
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Go to 

http://planet.racket-lang.org/display.ss?package=gl-world.plt&owner=jaymccarthy

for more information.