A new version of the Canvas Particle Emitter plugin (vs 1.6) is available to download!
Now there's a UGUI renderer to Unity's standard Shuriken particles.
Just add a ShurikenCanvasRenderer component into the same particle system object, then drop the game object in a canvas parent and the plugin will take care of making the particles render in the canvas.
The script is fully compatible of new particle texture atlas.
So, now you can choose to create a fully Canvas Particle Emitter from scratch or using any existent Shuriken particle system.