[Bf-committers] Updated requirements for Blender

[Thomas Dinges]

Hi,
I updated the requirements page on blender.org: 
http://www.blender.org/download/requirements/

* OpenGL 2.1 is now specified as the required minimum.
* Windows XP is not working anymore and therefore removed from the list 
of supported platforms. (see https://developer.blender.org/T46843).
We already put too much effort into keeping this work (much further than 
other software), now it's finally time to say goodbye.

These requirements are valid for current Buildbot and upcoming 2.77,
so if anyone thinks I should add a "OGL 1.4 + XP still work with current 
2.76 release" please tell me. I don't think it's needed though.

Best regards,
Thomas