getDisplayXXX info calls work only in window mode and not in swing

display.getDisplayVendor, getDisplayRenderer etc. check if (Display.isCreated()) before using GL11.glGetString.

That is ok for window mode but does not work in swing mode where Display.isCreated() returns false.

It is very minor problem, because GL11.glGetString(GL11.GL_RENDERER) can be issued directly.


Fixed this locally and tested with RenParticleEditor.  Will be commited with our next cvs push.