GLFW: minor cmake update closes #159
GLFW: minor cmake update closes #159

Sparkier/inviwo,inviwo/inviwo,inviwo/inviwo,Sparkier/inviwo,inviwo/inviwo,Sparkier/inviwo,Sparkier/inviwo,inviwo/inviwo,Sparkier/inviwo,inviwo/inviwo,inviwo/inviwo