Bumped version in configure template to 0.11
Added NodeListener (ref #90)
Node can take NodeListener's (ref #90)
RotateNode supports observers (ref #90)
ScaleNode supports observers (ref #90)
TranslateNode supports observers (ref #90)
Vec3UniformNode supports observers (ref #90)
Vec4UniformNode supports observers (ref #90)
FloatUniformNode supports observers (ref #90)
Mat3UniformNode supports observers (ref #90)