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@Kronikarz: From the looks of it, GLEW seems to be the way of the future. NVIDIA already ships it along with its OpenGL SDK. And its latest release was in 2007 compared to GLEE which was in 2006.
But, the usage of both libraries looks almost the same to me. (GLEW has an init() which needs to be called before anything else though.) So, you don't need to switch unless you find some extension not being supported under GLEE.
GL3W is a public-domain script that creates a library which loads only core functionality for OpenGL 3/4. It can be found on github at:
https://github.com/skaslev/gl3w
GL3W requires Python 2.6 to generate the libraries and headers for OpenGL; it does not require Python after that.