cinder/Cinder — pull request #625 by richardeakin (2014-12-04 16:03:33+00:00)
Title: Add gl::ScopedColor default constructor

I think this is nice to have, and pretty intuitive, when you are setting multiple colors and drawing multiple things in the same drawing routine:

```
MyApp::draw()
{
gl::ScopedModelMatrix scopedMat;
gl::ScopedColor colorScope;

gl::color( vec3( 1, 0, 0 ) );
// draw something red..

gl::color( vec3( 0, 0, 1 );
// draw something blue..
}
```