Fix error on Intel HD 2500 card in Windows 8.1: pass through vLightDir in dancenote.vert shader
Don't disable sync_with_stdio, because it might be this that prevents messages going to console in Windows
Merge pull request #119 from jamesjrg/master

Fix error on Intel HD 2500 card in Windows 8.1
looks ok to me, tested it on ubuntu 14.10 and no problems so far.

@jamesjrg Thanks!