Right now, if you use a shaderPath = "MyShader" ... With no path info... it will look for the shader as "/src/Shaders/MyShader.vertex.fx".
That should load from the folder the .babylon file is in Just like textures... Right???
I think it would be MUCH easier if it did, JUST LIKE TEXTURES 
Can we fix that... I don't know where in the code that is happening